72804704 has 24 divisors (see below), whose sum is σ = 163811088. Its totient is φ = 31201920.

The previous prime is 72804701. The next prime is 72804707. The reversal of 72804704 is 40740827.

It is an interprime number because it is at equal distance from previous prime (72804701) and next prime (72804707).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72804701) 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, 162287 + ... + 162734.

It is an arithmetic number, because the mean of its divisors is an integer number (6825462).

Almost surely, 2^72804704 is an apocalyptic number.

It is an amenable number.

72804704 is an abundant number, since it is smaller than the sum of its proper divisors (91006384).

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

72804704 is a wasteful number, since it uses less digits than its factorization.

72804704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325038 (or 325030 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 72804704 is about 8532.5672572796. The cubic root of 72804704 is about 417.5608889644.

The spelling of 72804704 in words is "seventy-two million, eight hundred four thousand, seven hundred four".