13312879 has 2 divisors, whose sum is σ = 13312880. Its totient is φ = 13312878.

The previous prime is 13312841. The next prime is 13312889. The reversal of 13312879 is 97821331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13312879 - 2¹¹ = 13310831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13312889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6656439 + 6656440.

It is an arithmetic number, because the mean of its divisors is an integer number (6656440).

Almost surely, 2^13312879 is an apocalyptic number.

13312879 is a deficient number, since it is larger than the sum of its proper divisors (1).

13312879 is an equidigital number, since it uses as much as digits as its factorization.

13312879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 13312879 is about 3648.6818167662. The cubic root of 13312879 is about 237.0049017721.

The spelling of 13312879 in words is "thirteen million, three hundred twelve thousand, eight hundred seventy-nine".