56774691 has 12 divisors (see below), whose sum is σ = 82134000. Its totient is φ = 37791600.

The previous prime is 56774681. The next prime is 56774699. The reversal of 56774691 is 19647765.

It is a happy number.

It is not a de Polignac number, because 56774691 - 2⁷ = 56774563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56774699) 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, 1810 + ... + 10808.

It is an arithmetic number, because the mean of its divisors is an integer number (6844500).

Almost surely, 2^56774691 is an apocalyptic number.

56774691 is a deficient number, since it is larger than the sum of its proper divisors (25359309).

56774691 is a wasteful number, since it uses less digits than its factorization.

56774691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9706 (or 9703 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 56774691 is about 7534.8982076734. The cubic root of 56774691 is about 384.3423663748.

The spelling of 56774691 in words is "fifty-six million, seven hundred seventy-four thousand, six hundred ninety-one".