56686823 has 16 divisors (see below), whose sum is σ = 63544320. Its totient is φ = 50253696.

The previous prime is 56686813. The next prime is 56686829. The reversal of 56686823 is 32868665.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56686823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56686829) 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, 71636 + ... + 72422.

It is an arithmetic number, because the mean of its divisors is an integer number (3971520).

Almost surely, 2^56686823 is an apocalyptic number.

56686823 is a deficient number, since it is larger than the sum of its proper divisors (6857497).

56686823 is a wasteful number, since it uses less digits than its factorization.

56686823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046.

The product of its digits is 414720, while the sum is 44.

The square root of 56686823 is about 7529.0652142215. The cubic root of 56686823 is about 384.1439867114.

The spelling of 56686823 in words is "fifty-six million, six hundred eighty-six thousand, eight hundred twenty-three".