2516979 has 4 divisors (see below), whose sum is σ = 3355976. Its totient is φ = 1677984.

The previous prime is 2516971. The next prime is 2516981. The reversal of 2516979 is 9796152.

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

It is not a de Polignac number, because 2516979 - 2³ = 2516971 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2516971) 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, 419494 + ... + 419499.

It is an arithmetic number, because the mean of its divisors is an integer number (838994).

2^2516979 is an apocalyptic number.

2516979 is a deficient number, since it is larger than the sum of its proper divisors (838997).

2516979 is an equidigital number, since it uses as much as digits as its factorization.

2516979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838996.

The product of its digits is 34020, while the sum is 39.

The square root of 2516979 is about 1586.4989757324. The cubic root of 2516979 is about 136.0274418385.

The spelling of 2516979 in words is "two million, five hundred sixteen thousand, nine hundred seventy-nine".