2122979 has 2 divisors, whose sum is σ = 2122980. Its totient is φ = 2122978.

The previous prime is 2122963. The next prime is 2123027. The reversal of 2122979 is 9792212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2122979 - 2⁴ = 2122963 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2122079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061489 + 1061490.

It is an arithmetic number, because the mean of its divisors is an integer number (1061490).

2^2122979 is an apocalyptic number.

2122979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122979 is an equidigital number, since it uses as much as digits as its factorization.

2122979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 32.

The square root of 2122979 is about 1457.0446115339. The cubic root of 2122979 is about 128.5233092711.

The spelling of 2122979 in words is "two million, one hundred twenty-two thousand, nine hundred seventy-nine".