13968907 has 2 divisors, whose sum is σ = 13968908. Its totient is φ = 13968906.

The previous prime is 13968887. The next prime is 13968919. The reversal of 13968907 is 70986931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13968907 - 2¹⁹ = 13444619 is a prime.

It is the 3738-th Hogben number.

It is not a weakly prime, because it can be changed into another prime (13968307) by changing a digit.

It is a nontrivial repunit in base 3737.

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, 6984453 + 6984454.

It is an arithmetic number, because the mean of its divisors is an integer number (6984454).

Almost surely, 2^13968907 is an apocalyptic number.

13968907 is a deficient number, since it is larger than the sum of its proper divisors (1).

13968907 is an equidigital number, since it uses as much as digits as its factorization.

13968907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 13968907 is about 3737.5001003344. The cubic root of 13968907 is about 240.8356690373.

The spelling of 13968907 in words is "thirteen million, nine hundred sixty-eight thousand, nine hundred seven".