13307891 has 2 divisors, whose sum is σ = 13307892. Its totient is φ = 13307890.

The previous prime is 13307887. The next prime is 13307893. The reversal of 13307891 is 19870331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13307891 - 2² = 13307887 is a prime.

Together with 13307893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13307893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6653945 + 6653946.

It is an arithmetic number, because the mean of its divisors is an integer number (6653946).

Almost surely, 2^13307891 is an apocalyptic number.

13307891 is a deficient number, since it is larger than the sum of its proper divisors (1).

13307891 is an equidigital number, since it uses as much as digits as its factorization.

13307891 is an odious number, because the sum of its binary digits is odd.

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

The square root of 13307891 is about 3647.9982182013. The cubic root of 13307891 is about 236.9752981548.

The spelling of 13307891 in words is "thirteen million, three hundred seven thousand, eight hundred ninety-one".