74655872 has 16 divisors (see below), whose sum is σ = 148728750. Its totient is φ = 37327872.

The previous prime is 74655871. The next prime is 74655913. The reversal of 74655872 is 27855647.

It can be written as a sum of positive squares in only one way, i.e., 53348416 + 21307456 = 7304^2 + 4616^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-3 number, since 3×74655872³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (74655871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 291497 + ... + 291752.

Almost surely, 2^74655872 is an apocalyptic number.

It is an amenable number.

74655872 is a deficient number, since it is larger than the sum of its proper divisors (74072878).

74655872 is an equidigital number, since it uses as much as digits as its factorization.

74655872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583263 (or 583251 counting only the distinct ones).

The product of its digits is 470400, while the sum is 44.

The square root of 74655872 is about 8640.3629553393. The cubic root of 74655872 is about 421.0703463073.

The spelling of 74655872 in words is "seventy-four million, six hundred fifty-five thousand, eight hundred seventy-two".