2979813 has 12 divisors (see below), whose sum is σ = 4124288. Its totient is φ = 1911720.

The previous prime is 2979797. The next prime is 2979817. The reversal of 2979813 is 3189792.

It is not a de Polignac number, because 2979813 - 2⁴ = 2979797 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 9 + 7⁷ + 9⁵ + 8⁷ + 1 + 3³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2979817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16558 + ... + 16736.

2^2979813 is an apocalyptic number.

It is an amenable number.

2979813 is a deficient number, since it is larger than the sum of its proper divisors (1144475).

2979813 is an equidigital number, since it uses as much as digits as its factorization.

2979813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 213 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 2979813 is about 1726.2134862177. The cubic root of 2979813 is about 143.9007321245.

The spelling of 2979813 in words is "two million, nine hundred seventy-nine thousand, eight hundred thirteen".