72656956 has 12 divisors (see below), whose sum is σ = 127683360. Its totient is φ = 36176000.

The previous prime is 72656869. The next prime is 72656989. The reversal of 72656956 is 65965627.

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, 37045 + ... + 38956.

It is an arithmetic number, because the mean of its divisors is an integer number (10640280).

Almost surely, 2^72656956 is an apocalyptic number.

It is an amenable number.

72656956 is a deficient number, since it is larger than the sum of its proper divisors (55026404).

72656956 is a wasteful number, since it uses less digits than its factorization.

72656956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76244 (or 76242 counting only the distinct ones).

The product of its digits is 680400, while the sum is 46.

The square root of 72656956 is about 8523.9049736608. The cubic root of 72656956 is about 417.2782352200.

The spelling of 72656956 in words is "seventy-two million, six hundred fifty-six thousand, nine hundred fifty-six".