72785804 has 24 divisors (see below), whose sum is σ = 156770208. Its totient is φ = 28794240.

The previous prime is 72785803. The next prime is 72785807. The reversal of 72785804 is 40858727.

It is not an unprimeable number, because it can be changed into a prime (72785803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99617 + ... + 100344.

It is an arithmetic number, because the mean of its divisors is an integer number (6532092).

Almost surely, 2^72785804 is an apocalyptic number.

It is an amenable number.

72785804 is an abundant number, since it is smaller than the sum of its proper divisors (83984404).

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

72785804 is a wasteful number, since it uses less digits than its factorization.

72785804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199985 (or 199983 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 72785804 is about 8531.4596640903. The cubic root of 72785804 is about 417.5247530951.

The spelling of 72785804 in words is "seventy-two million, seven hundred eighty-five thousand, eight hundred four".