12718879 has 2 divisors, whose sum is σ = 12718880. Its totient is φ = 12718878.

The previous prime is 12718877. The next prime is 12718891. The reversal of 12718879 is 97881721.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12718879 - 2¹ = 12718877 is a prime.

Together with 12718877, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12718877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6359439 + 6359440.

It is an arithmetic number, because the mean of its divisors is an integer number (6359440).

Almost surely, 2^12718879 is an apocalyptic number.

12718879 is a deficient number, since it is larger than the sum of its proper divisors (1).

12718879 is an equidigital number, since it uses as much as digits as its factorization.

12718879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 43.

The square root of 12718879 is about 3566.3537401666. The cubic root of 12718879 is about 233.4262063398.

The spelling of 12718879 in words is "twelve million, seven hundred eighteen thousand, eight hundred seventy-nine".