72764164 has 12 divisors (see below), whose sum is σ = 138913488. Its totient is φ = 33074600.

The previous prime is 72764143. The next prime is 72764171. The reversal of 72764164 is 46146727.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 826822 + ... + 826909.

It is an arithmetic number, because the mean of its divisors is an integer number (11576124).

Almost surely, 2^72764164 is an apocalyptic number.

It is an amenable number.

72764164 is a deficient number, since it is larger than the sum of its proper divisors (66149324).

72764164 is a wasteful number, since it uses less digits than its factorization.

72764164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653746 (or 1653744 counting only the distinct ones).

The product of its digits is 56448, while the sum is 37.

The square root of 72764164 is about 8530.1913225906. The cubic root of 72764164 is about 417.4833707983.

The spelling of 72764164 in words is "seventy-two million, seven hundred sixty-four thousand, one hundred sixty-four".