56747686 has 8 divisors (see below), whose sum is σ = 85367880. Its totient is φ = 28291728.

The previous prime is 56747657. The next prime is 56747687. The reversal of 56747686 is 68674765.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56747687) 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, 40191 + ... + 41578.

It is an arithmetic number, because the mean of its divisors is an integer number (10670985).

Almost surely, 2^56747686 is an apocalyptic number.

56747686 is a deficient number, since it is larger than the sum of its proper divisors (28620194).

56747686 is a wasteful number, since it uses less digits than its factorization.

56747686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82118.

The product of its digits is 1693440, while the sum is 49.

The square root of 56747686 is about 7533.1059995197. The cubic root of 56747686 is about 384.2814189616.

The spelling of 56747686 in words is "fifty-six million, seven hundred forty-seven thousand, six hundred eighty-six".