56670784 has 21 divisors (see below), whose sum is σ = 112575721. Its totient is φ = 28305280.

The previous prime is 56670773. The next prime is 56670799. The reversal of 56670784 is 48707665.

The square root of 56670784 is 7528.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 35141184 + 21529600 = 5928^2 + 4640^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56670784.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 59754 + ... + 60694.

Almost surely, 2^56670784 is an apocalyptic number.

56670784 is the 7528-th square number.

It is an amenable number.

56670784 is a deficient number, since it is larger than the sum of its proper divisors (55904937).

56670784 is an frugal number, since it uses more digits than its factorization.

56670784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The cubic root of 56670784 is about 384.1077533256.

The spelling of 56670784 in words is "fifty-six million, six hundred seventy thousand, seven hundred eighty-four".