2979656 has 16 divisors (see below), whose sum is σ = 5881200. Its totient is φ = 1411344.

The previous prime is 2979653. The next prime is 2979661. The reversal of 2979656 is 6569792.

It is not an unprimeable number, because it can be changed into a prime (2979653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9650 + ... + 9953.

It is an arithmetic number, because the mean of its divisors is an integer number (367575).

2^2979656 is an apocalyptic number.

It is an amenable number.

2979656 is a deficient number, since it is larger than the sum of its proper divisors (2901544).

2979656 is a wasteful number, since it uses less digits than its factorization.

2979656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19628 (or 19624 counting only the distinct ones).

The product of its digits is 204120, while the sum is 44.

The square root of 2979656 is about 1726.1680103628. The cubic root of 2979656 is about 143.8982048058.

The spelling of 2979656 in words is "two million, nine hundred seventy-nine thousand, six hundred fifty-six".