56743857 has 12 divisors (see below), whose sum is σ = 84607744. Its totient is φ = 36608760.

The previous prime is 56743853. The next prime is 56743859. The reversal of 56743857 is 75834765.

56743857 is a `hidden beast` number, since 567 + 4 + 3 + 85 + 7 = 666.

It is not a de Polignac number, because 56743857 - 2² = 56743853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56743853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101413 + ... + 101970.

Almost surely, 2^56743857 is an apocalyptic number.

It is an amenable number.

56743857 is a deficient number, since it is larger than the sum of its proper divisors (27863887).

56743857 is a wasteful number, since it uses less digits than its factorization.

56743857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203420 (or 203417 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 56743857 is about 7532.8518503950. The cubic root of 56743857 is about 384.2727757507.

It can be divided in two parts, 56743 and 857, that added together give a square (57600 = 240²).

The spelling of 56743857 in words is "fifty-six million, seven hundred forty-three thousand, eight hundred fifty-seven".