56779886 has 8 divisors (see below), whose sum is σ = 85233720. Its totient is φ = 28368648.

The previous prime is 56779873. The next prime is 56779913. The reversal of 56779886 is 68897765.

It is a happy number.

56779886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7076 + ... + 12791.

It is an arithmetic number, because the mean of its divisors is an integer number (10654215).

Almost surely, 2^56779886 is an apocalyptic number.

56779886 is a deficient number, since it is larger than the sum of its proper divisors (28453834).

56779886 is a wasteful number, since it uses less digits than its factorization.

56779886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21298.

The product of its digits is 5080320, while the sum is 56.

The square root of 56779886 is about 7535.2429290634. The cubic root of 56779886 is about 384.3540887207.

The spelling of 56779886 in words is "fifty-six million, seven hundred seventy-nine thousand, eight hundred eighty-six".