72761756 has 12 divisors (see below), whose sum is σ = 127863120. Its totient is φ = 36229440.

The previous prime is 72761707. The next prime is 72761779. The reversal of 72761756 is 65716727.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36776 + ... + 38703.

It is an arithmetic number, because the mean of its divisors is an integer number (10655260).

Almost surely, 2^72761756 is an apocalyptic number.

It is an amenable number.

72761756 is a deficient number, since it is larger than the sum of its proper divisors (55101364).

72761756 is a wasteful number, since it uses less digits than its factorization.

72761756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75724 (or 75722 counting only the distinct ones).

The product of its digits is 123480, while the sum is 41.

The square root of 72761756 is about 8530.0501757024. The cubic root of 72761756 is about 417.4787654588.

The spelling of 72761756 in words is "seventy-two million, seven hundred sixty-one thousand, seven hundred fifty-six".