56976729 has 12 divisors (see below), whose sum is σ = 78502608. Its totient is φ = 36757320.

The previous prime is 56976701. The next prime is 56976743. The reversal of 56976729 is 92767965.

It is not a de Polignac number, because 56976729 - 2⁵ = 56976697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56976769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6999 + ... + 12764.

It is an arithmetic number, because the mean of its divisors is an integer number (6541884).

Almost surely, 2^56976729 is an apocalyptic number.

It is an amenable number.

56976729 is a deficient number, since it is larger than the sum of its proper divisors (21525879).

56976729 is a wasteful number, since it uses less digits than its factorization.

56976729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19828 (or 19797 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 51.

The square root of 56976729 is about 7548.2931183149. The cubic root of 56976729 is about 384.7977326245.

The spelling of 56976729 in words is "fifty-six million, nine hundred seventy-six thousand, seven hundred twenty-nine".