72659756 has 12 divisors (see below), whose sum is σ = 136935792. Its totient is φ = 33535248.

The previous prime is 72659711. The next prime is 72659773. The reversal of 72659756 is 65795627.

It is a self number, because there is not a number n which added to its sum of digits gives 72659756.

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, 698600 + ... + 698703.

It is an arithmetic number, because the mean of its divisors is an integer number (11411316).

Almost surely, 2^72659756 is an apocalyptic number.

It is an amenable number.

72659756 is a deficient number, since it is larger than the sum of its proper divisors (64276036).

72659756 is a wasteful number, since it uses less digits than its factorization.

72659756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397320 (or 1397318 counting only the distinct ones).

The product of its digits is 793800, while the sum is 47.

The square root of 72659756 is about 8524.0692160493. The cubic root of 72659756 is about 417.2835954044.

The spelling of 72659756 in words is "seventy-two million, six hundred fifty-nine thousand, seven hundred fifty-six".