72564928 has 14 divisors (see below), whose sum is σ = 143996156. Its totient is φ = 36282432.

The previous prime is 72564923. The next prime is 72564949. The reversal of 72564928 is 82946527.

It is not an unprimeable number, because it can be changed into a prime (72564923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566850 + ... + 566977.

Almost surely, 2^72564928 is an apocalyptic number.

It is an amenable number.

72564928 is a deficient number, since it is larger than the sum of its proper divisors (71431228).

72564928 is a wasteful number, since it uses less digits than its factorization.

72564928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133839 (or 1133829 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 72564928 is about 8518.5050331616. The cubic root of 72564928 is about 417.1019845754.

The spelling of 72564928 in words is "seventy-two million, five hundred sixty-four thousand, nine hundred twenty-eight".