2979668 has 6 divisors (see below), whose sum is σ = 5214426. Its totient is φ = 1489832.

The previous prime is 2979661. The next prime is 2979671. The reversal of 2979668 is 8669792.

It can be written as a sum of positive squares in only one way, i.e., 2829124 + 150544 = 1682^2 + 388^2 .

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372455 + ... + 372462.

It is an arithmetic number, because the mean of its divisors is an integer number (869071).

2^2979668 is an apocalyptic number.

It is an amenable number.

2979668 is a deficient number, since it is larger than the sum of its proper divisors (2234758).

2979668 is a wasteful number, since it uses less digits than its factorization.

2979668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744921 (or 744919 counting only the distinct ones).

The product of its digits is 326592, while the sum is 47.

The square root of 2979668 is about 1726.1714862666. The cubic root of 2979668 is about 143.8983979798.

It can be divided in two parts, 29 and 79668, that added together give a palindrome (79697).

The spelling of 2979668 in words is "two million, nine hundred seventy-nine thousand, six hundred sixty-eight".