3126979 has 2 divisors, whose sum is σ = 3126980. Its totient is φ = 3126978.

The previous prime is 3126973. The next prime is 3127009. The reversal of 3126979 is 9796213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3126979 - 2²¹ = 1029827 is a prime.

3126979 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3126973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1563489 + 1563490.

It is an arithmetic number, because the mean of its divisors is an integer number (1563490).

Almost surely, 2^3126979 is an apocalyptic number.

3126979 is a deficient number, since it is larger than the sum of its proper divisors (1).

3126979 is an equidigital number, since it uses as much as digits as its factorization.

3126979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 37.

The square root of 3126979 is about 1768.3266101035. The cubic root of 3126979 is about 146.2317424307.

The spelling of 3126979 in words is "three million, one hundred twenty-six thousand, nine hundred seventy-nine".