13297391 has 2 divisors, whose sum is σ = 13297392. Its totient is φ = 13297390.

The previous prime is 13297369. The next prime is 13297409. The reversal of 13297391 is 19379231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13297391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13297301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6648695 + 6648696.

It is an arithmetic number, because the mean of its divisors is an integer number (6648696).

Almost surely, 2^13297391 is an apocalyptic number.

13297391 is a deficient number, since it is larger than the sum of its proper divisors (1).

13297391 is an equidigital number, since it uses as much as digits as its factorization.

13297391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206, while the sum is 35.

The square root of 13297391 is about 3646.5587887761. The cubic root of 13297391 is about 236.9129568134.

The spelling of 13297391 in words is "thirteen million, two hundred ninety-seven thousand, three hundred ninety-one".