2635979 has 2 divisors, whose sum is σ = 2635980. Its totient is φ = 2635978.

The previous prime is 2635973. The next prime is 2635987. The reversal of 2635979 is 9795362.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2635979 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2²¹ + 6⁴ + 3⁷ + 5⁵ + 9³ + 7² + 9⁶ .

It is not a weakly prime, because it can be changed into another prime (2635973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1317989 + 1317990.

It is an arithmetic number, because the mean of its divisors is an integer number (1317990).

2^2635979 is an apocalyptic number.

2635979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2635979 is an equidigital number, since it uses as much as digits as its factorization.

2635979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 41.

The square root of 2635979 is about 1623.5698321908. The cubic root of 2635979 is about 138.1382602286.

The spelling of 2635979 in words is "two million, six hundred thirty-five thousand, nine hundred seventy-nine".