12959887 has 2 divisors, whose sum is σ = 12959888. Its totient is φ = 12959886.

The previous prime is 12959873. The next prime is 12959893. The reversal of 12959887 is 78895921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12959887 - 2¹¹ = 12957839 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12959887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12959867) 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, 6479943 + 6479944.

It is an arithmetic number, because the mean of its divisors is an integer number (6479944).

Almost surely, 2^12959887 is an apocalyptic number.

12959887 is a deficient number, since it is larger than the sum of its proper divisors (1).

12959887 is an equidigital number, since it uses as much as digits as its factorization.

12959887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 49.

The square root of 12959887 is about 3599.9843055213. The cubic root of 12959887 is about 234.8913757829.

The spelling of 12959887 in words is "twelve million, nine hundred fifty-nine thousand, eight hundred eighty-seven".