556977 has 16 divisors (see below), whose sum is σ = 787968. Its totient is φ = 349440.

The previous prime is 556967. The next prime is 556981. The reversal of 556977 is 779655.

It is not a de Polignac number, because 556977 - 2⁷ = 556849 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 556977.

It is not an unprimeable number, because it can be changed into a prime (556957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4873 + ... + 4985.

It is an arithmetic number, because the mean of its divisors is an integer number (49248).

2⁵⁵⁶⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

556977 is a deficient number, since it is larger than the sum of its proper divisors (230991).

556977 is a wasteful number, since it uses less digits than its factorization.

556977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200.

The product of its digits is 66150, while the sum is 39.

The square root of 556977 is about 746.3089172722. The cubic root of 556977 is about 82.2771211023.

The spelling of 556977 in words is "five hundred fifty-six thousand, nine hundred seventy-seven".