2979664 has 10 divisors (see below), whose sum is σ = 5773130. Its totient is φ = 1489824.

The previous prime is 2979661. The next prime is 2979671. The reversal of 2979664 is 4669792.

It can be written as a sum of positive squares in only one way, i.e., 2274064 + 705600 = 1508^2 + 840^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2979664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2979661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93099 + ... + 93130.

It is an arithmetic number, because the mean of its divisors is an integer number (577313).

2^2979664 is an apocalyptic number.

It is an amenable number.

2979664 is a deficient number, since it is larger than the sum of its proper divisors (2793466).

2979664 is a wasteful number, since it uses less digits than its factorization.

2979664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186237 (or 186231 counting only the distinct ones).

The product of its digits is 163296, while the sum is 43.

The square root of 2979664 is about 1726.1703276328. The cubic root of 2979664 is about 143.8983335885.

The spelling of 2979664 in words is "two million, nine hundred seventy-nine thousand, six hundred sixty-four".