2560979 has 2 divisors, whose sum is σ = 2560980. Its totient is φ = 2560978.

The previous prime is 2560973. The next prime is 2560993. The reversal of 2560979 is 9790652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2560979 - 2¹⁶ = 2495443 is a prime.

It is a super-2 number, since 2×2560979² = 13117226876882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2560973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1280489 + 1280490.

It is an arithmetic number, because the mean of its divisors is an integer number (1280490).

2^2560979 is an apocalyptic number.

2560979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2560979 is an equidigital number, since it uses as much as digits as its factorization.

2560979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 2560979 is about 1600.3059082563. The cubic root of 2560979 is about 136.8155117039.

The spelling of 2560979 in words is "two million, five hundred sixty thousand, nine hundred seventy-nine".