56943886 has 4 divisors (see below), whose sum is σ = 85415832. Its totient is φ = 28471942.

The previous prime is 56943871. The next prime is 56943899. The reversal of 56943886 is 68834965.

It is a happy number.

56943886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two 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 as a sum of consecutive naturals, namely, 14235970 + ... + 14235973.

It is an arithmetic number, because the mean of its divisors is an integer number (21353958).

Almost surely, 2^56943886 is an apocalyptic number.

56943886 is a deficient number, since it is larger than the sum of its proper divisors (28471946).

56943886 is a wasteful number, since it uses less digits than its factorization.

56943886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28471945.

The product of its digits is 1244160, while the sum is 49.

The square root of 56943886 is about 7546.1172797671. The cubic root of 56943886 is about 384.7237823106.

The spelling of 56943886 in words is "fifty-six million, nine hundred forty-three thousand, eight hundred eighty-six".