2797979 has 4 divisors (see below), whose sum is σ = 2962584. Its totient is φ = 2633376.

The previous prime is 2797961. The next prime is 2797999. The reversal of 2797979 is 9797972.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2797979 - 2⁸ = 2797723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2797919) 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, 82277 + ... + 82310.

It is an arithmetic number, because the mean of its divisors is an integer number (740646).

2^2797979 is an apocalyptic number.

2797979 is a deficient number, since it is larger than the sum of its proper divisors (164605).

2797979 is a wasteful number, since it uses less digits than its factorization.

2797979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164604.

The product of its digits is 500094, while the sum is 50.

The square root of 2797979 is about 1672.7160548043. The cubic root of 2797979 is about 140.9120555489.

The spelling of 2797979 in words is "two million, seven hundred ninety-seven thousand, nine hundred seventy-nine".