56974809 has 8 divisors (see below), whose sum is σ = 76004640. Its totient is φ = 37964096.

The previous prime is 56974777. The next prime is 56974823. The reversal of 56974809 is 90847965.

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

It is a cyclic number.

It is not a de Polignac number, because 56974809 - 2⁵ = 56974777 is a prime.

It is a super-2 number, since 2×56974809² = 6492257721172962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56974859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5089 + ... + 11825.

It is an arithmetic number, because the mean of its divisors is an integer number (9500580).

Almost surely, 2^56974809 is an apocalyptic number.

It is an amenable number.

56974809 is a deficient number, since it is larger than the sum of its proper divisors (19029831).

56974809 is a wasteful number, since it uses less digits than its factorization.

56974809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9559.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 56974809 is about 7548.1659361728. The cubic root of 56974809 is about 384.7934102754.

The spelling of 56974809 in words is "fifty-six million, nine hundred seventy-four thousand, eight hundred nine".