56439706 has 8 divisors (see below), whose sum is σ = 85611060. Its totient is φ = 27902688.

The previous prime is 56439703. The next prime is 56439707. The reversal of 56439706 is 60793465.

It can be written as a sum of positive squares in 2 ways, for example, as 55368481 + 1071225 = 7441^2 + 1035^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (56439703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158361 + ... + 158716.

Almost surely, 2^56439706 is an apocalyptic number.

56439706 is a deficient number, since it is larger than the sum of its proper divisors (29171354).

56439706 is a wasteful number, since it uses less digits than its factorization.

56439706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317168.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 56439706 is about 7512.6364213903. The cubic root of 56439706 is about 383.5849691632.

The spelling of 56439706 in words is "fifty-six million, four hundred thirty-nine thousand, seven hundred six".