104172656 has 20 divisors (see below), whose sum is σ = 230668272. Its totient is φ = 44645376.

The previous prime is 104172643. The next prime is 104172659. The reversal of 104172656 is 656271401.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104172659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464945 + ... + 465168.

Almost surely, 2^104172656 is an apocalyptic number.

104172656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

104172656 is an abundant number, since it is smaller than the sum of its proper divisors (126495616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104172656 is an equidigital number, since it uses as much as digits as its factorization.

104172656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930128 (or 930122 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 104172656 is about 10206.5006735903. The cubic root of 104172656 is about 470.5270321532.

The spelling of 104172656 in words is "one hundred four million, one hundred seventy-two thousand, six hundred fifty-six".