72764884 has 6 divisors (see below), whose sum is σ = 127338554. Its totient is φ = 36382440.

The previous prime is 72764849. The next prime is 72764897. The reversal of 72764884 is 48846727.

It can be written as a sum of positive squares in only one way, i.e., 52243984 + 20520900 = 7228^2 + 4530^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 9095607 + ... + 9095614.

Almost surely, 2^72764884 is an apocalyptic number.

It is an amenable number.

72764884 is a deficient number, since it is larger than the sum of its proper divisors (54573670).

72764884 is a wasteful number, since it uses less digits than its factorization.

72764884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18191225 (or 18191223 counting only the distinct ones).

The product of its digits is 602112, while the sum is 46.

The square root of 72764884 is about 8530.2335255255. The cubic root of 72764884 is about 417.4847477904.

The spelling of 72764884 in words is "seventy-two million, seven hundred sixty-four thousand, eight hundred eighty-four".