56790866 has 12 divisors (see below), whose sum is σ = 93634926. Its totient is φ = 25813920.

The previous prime is 56790847. The next prime is 56790869. The reversal of 56790866 is 66809765.

56790866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 56776225 + 14641 = 7535^2 + 121^2 .

It is a super-2 number, since 2×56790866² = 6450404922059912, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56790866.

It is not an unprimeable number, because it can be changed into a prime (56790869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117095 + ... + 117578.

Almost surely, 2^56790866 is an apocalyptic number.

56790866 is a deficient number, since it is larger than the sum of its proper divisors (36844060).

56790866 is a wasteful number, since it uses less digits than its factorization.

56790866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234697 (or 234686 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 56790866 is about 7535.9714702220. The cubic root of 56790866 is about 384.3788623755.

The spelling of 56790866 in words is "fifty-six million, seven hundred ninety thousand, eight hundred sixty-six".