56947982 has 32 divisors (see below), whose sum is σ = 105857472. Its totient is φ = 22374144.

The previous prime is 56947963. The next prime is 56947991. The reversal of 56947982 is 28974965.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 56947982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27578 + ... + 29570.

It is an arithmetic number, because the mean of its divisors is an integer number (3308046).

Almost surely, 2^56947982 is an apocalyptic number.

56947982 is a deficient number, since it is larger than the sum of its proper divisors (48909490).

56947982 is a wasteful number, since it uses less digits than its factorization.

56947982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172.

The product of its digits is 1088640, while the sum is 50.

The square root of 56947982 is about 7546.3886727361. The cubic root of 56947982 is about 384.7330065425.

The spelling of 56947982 in words is "fifty-six million, nine hundred forty-seven thousand, nine hundred eighty-two".