2658979 has 2 divisors, whose sum is σ = 2658980. Its totient is φ = 2658978.

The previous prime is 2658977. The next prime is 2658983. The reversal of 2658979 is 9798562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2658979 - 2¹ = 2658977 is a prime.

Together with 2658977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2658977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1329489 + 1329490.

It is an arithmetic number, because the mean of its divisors is an integer number (1329490).

2^2658979 is an apocalyptic number.

2658979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2658979 is an equidigital number, since it uses as much as digits as its factorization.

2658979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 46.

The square root of 2658979 is about 1630.6376053556. The cubic root of 2658979 is about 138.5388683501.

The spelling of 2658979 in words is "two million, six hundred fifty-eight thousand, nine hundred seventy-nine".