72656774 has 32 divisors (see below), whose sum is σ = 116035200. Its totient is φ = 34070400.

The previous prime is 72656767. The next prime is 72656791. The reversal of 72656774 is 47765627.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462704 + ... + 462860.

It is an arithmetic number, because the mean of its divisors is an integer number (3626100).

Almost surely, 2^72656774 is an apocalyptic number.

72656774 is a deficient number, since it is larger than the sum of its proper divisors (43378426).

72656774 is a wasteful number, since it uses less digits than its factorization.

72656774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368.

The product of its digits is 493920, while the sum is 44.

The square root of 72656774 is about 8523.8942977960. The cubic root of 72656774 is about 417.2778868032.

The spelling of 72656774 in words is "seventy-two million, six hundred fifty-six thousand, seven hundred seventy-four".