13297813 has 2 divisors, whose sum is σ = 13297814. Its totient is φ = 13297812.

The previous prime is 13297787. The next prime is 13297819. The reversal of 13297813 is 31879231.

13297813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13118884 + 178929 = 3622^2 + 423^2 .

It is a cyclic number.

It is not a de Polignac number, because 13297813 - 2⁹ = 13297301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13297819) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6648906 + 6648907.

It is an arithmetic number, because the mean of its divisors is an integer number (6648907).

Almost surely, 2^13297813 is an apocalyptic number.

It is an amenable number.

13297813 is a deficient number, since it is larger than the sum of its proper divisors (1).

13297813 is an equidigital number, since it uses as much as digits as its factorization.

13297813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 13297813 is about 3646.6166510891. The cubic root of 13297813 is about 236.9154629745.

The spelling of 13297813 in words is "thirteen million, two hundred ninety-seven thousand, eight hundred thirteen".