888 is apractical number, meaning that every positive integer up to 888 itself may be represented as a sum of distinctdivisors of 888.[2]
888 is a Harshad number as it is divisible by its sum of digits, where 888 ÷ (8, 8, 8) is 888 ÷ 24, an equivalent fraction to 444 ÷ 12 or 222 ÷ 6, which is37.
888 is the 42nd longest side of aHeronian tetrahedron,[9] whoseedge lengths, faceareas andvolumes are allintegers; more specifically it is the second-largest longest side of a primitive Heronian tetrahedron (after203, and preceding1804)[a] with four congruent trianglefaces (thisprimitive Heronian tetrahedron is a tetrahedron where four edges share no commonfactor).[18]
888 is the smallest multiple of twenty-four divisible by all of its digits,[19] whosedigit sum is also itself.[20]
It is ahappy number indecimal, meaning that repeatedly summing the squares of its digits eventually leads to 1:
8883 = 700227072 is the smallestcube in which each digit occurs exactly three times,[21] and the only cube in which three distinct digits each occur three times.[22]
The number 888 is often symbolised within the international labour movement to symbolise the 8-hour day. Workers protested for 8 hours work, 8 hours rest and 8 hours time to themselves.
In someChristiannumerology, the number 888 –Eight hundred eighty-eight representsJesus. This representation may be justified either throughgematria, by counting the letter values of theGreek transliteration of Jesus' name,[23]as an opposing value to666, thenumber of the beast[24] and/or 888, as the Triple 8 means “new beginnings”. The numerological representation of Jesus with the number 888, as the sum of the numerical values of the letters of his name, was condemned by the Church fatherIrenaeus as convoluted and an act which reduced "the Lord of all things" to something alphabetical.[25]
InChinese numerology, 888 usually means triple fortune, due to 8 (pinyin: bā) sounds like 發(pinyin: fā) of 發達 (prosperity), and triplet of it is a form of strengthening of the digit 8. On its own, the number 8 is often associated with great fortune, wealth and spiritual enlightenment. Hence, 888 is considered triple.[26] For this reason, addresses and phone numbers containing the digit sequence 888 are considered particularly lucky, and may command a premium because of it.[27]
