56979 has 12 divisors (see below), whose sum is σ = 88816. Its totient is φ = 34992.

The previous prime is 56963. The next prime is 56983. The reversal of 56979 is 97965.

56979 = T₅₁ + T₅₂ + ... + T₇₇.

56979 = 2² + 3² + ... + 55².

It is not a de Polignac number, because 56979 - 2⁴ = 56963 is a prime.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (56909) 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, 127 + ... + 360.

2⁵⁶⁹⁷⁹ is an apocalyptic number.

56979 is a deficient number, since it is larger than the sum of its proper divisors (31837).

56979 is a wasteful number, since it uses less digits than its factorization.

56979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 503 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 56979 is about 238.7027440144. The cubic root of 56979 is about 38.4802845028.

It can be divided in two parts, 56 and 979, that added together give a triangular number (1035 = T₄₅).

The spelling of 56979 in words is "fifty-six thousand, nine hundred seventy-nine".