72617056 has 12 divisors (see below), whose sum is σ = 142964892. Its totient is φ = 36308512.

The previous prime is 72617033. The next prime is 72617063. The reversal of 72617056 is 65071627.

It is a hoax number, since the sum of its digits (34) 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 polite number, since it can be written as a sum of consecutive naturals, namely, 1134610 + ... + 1134673.

It is an arithmetic number, because the mean of its divisors is an integer number (11913741).

Almost surely, 2^72617056 is an apocalyptic number.

It is an amenable number.

72617056 is a deficient number, since it is larger than the sum of its proper divisors (70347836).

72617056 is a wasteful number, since it uses less digits than its factorization.

72617056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269293 (or 2269285 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 72617056 is about 8521.5641756663. The cubic root of 72617056 is about 417.2018376244.

The spelling of 72617056 in words is "seventy-two million, six hundred seventeen thousand, fifty-six".