56866670 has 16 divisors (see below), whose sum is σ = 116983008. Its totient is φ = 19497120.

The previous prime is 56866643. The next prime is 56866687. The reversal of 56866670 is 7666865.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406121 + ... + 406260.

It is an arithmetic number, because the mean of its divisors is an integer number (7311438).

Almost surely, 2^56866670 is an apocalyptic number.

56866670 is an abundant number, since it is smaller than the sum of its proper divisors (60116338).

56866670 is a wasteful number, since it uses less digits than its factorization.

56866670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812395.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 56866670 is about 7540.9992706537. Note that the first 3 decimals coincide. The cubic root of 56866670 is about 384.5498082969.

The spelling of 56866670 in words is "fifty-six million, eight hundred sixty-six thousand, six hundred seventy".