72536704 has 16 divisors (see below), whose sum is σ = 144506970. Its totient is φ = 36268288.

The previous prime is 72536693. The next prime is 72536713. The reversal of 72536704 is 40763527.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 48330304 + 24206400 = 6952^2 + 4920^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 72536704.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283219 + ... + 283474.

Almost surely, 2^72536704 is an apocalyptic number.

It is an amenable number.

72536704 is a deficient number, since it is larger than the sum of its proper divisors (71970266).

72536704 is an equidigital number, since it uses as much as digits as its factorization.

72536704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566707 (or 566695 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 72536704 is about 8516.8482433351. The cubic root of 72536704 is about 417.0479005372.

The spelling of 72536704 in words is "seventy-two million, five hundred thirty-six thousand, seven hundred four".