56839839 has 16 divisors (see below), whose sum is σ = 87102720. Its totient is φ = 32296320.

The previous prime is 56839787. The next prime is 56839841. The reversal of 56839839 is 93893865.

It is not a de Polignac number, because 56839839 - 2⁷ = 56839711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56839791 and 56839800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56839889) 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, 3802 + ... + 11319.

It is an arithmetic number, because the mean of its divisors is an integer number (5443920).

Almost surely, 2^56839839 is an apocalyptic number.

56839839 is a deficient number, since it is larger than the sum of its proper divisors (30262881).

56839839 is a wasteful number, since it uses less digits than its factorization.

56839839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15310.

The product of its digits is 1399680, while the sum is 51.

The square root of 56839839 is about 7539.2200524988. The cubic root of 56839839 is about 384.4893189742.

The spelling of 56839839 in words is "fifty-six million, eight hundred thirty-nine thousand, eight hundred thirty-nine".