72578604 has 36 divisors (see below), whose sum is σ = 197000664. Its totient is φ = 20736576.

The previous prime is 72578579. The next prime is 72578633. The reversal of 72578604 is 40687527.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61129 + ... + 62304.

Almost surely, 2^72578604 is an apocalyptic number.

It is an amenable number.

72578604 is an abundant number, since it is smaller than the sum of its proper divisors (124422060).

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

72578604 is a wasteful number, since it uses less digits than its factorization.

72578604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123454 (or 123445 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 72578604 is about 8519.3077183536. The cubic root of 72578604 is about 417.1281860687.

The spelling of 72578604 in words is "seventy-two million, five hundred seventy-eight thousand, six hundred four".