13313917 has 2 divisors, whose sum is σ = 13313918. Its totient is φ = 13313916.

The previous prime is 13313899. The next prime is 13313933. The reversal of 13313917 is 71931331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9369721 + 3944196 = 3061^2 + 1986^2 .

It is a cyclic number.

It is not a de Polignac number, because 13313917 - 2²³ = 4925309 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 (13313977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6656958 + 6656959.

It is an arithmetic number, because the mean of its divisors is an integer number (6656959).

Almost surely, 2^13313917 is an apocalyptic number.

It is an amenable number.

13313917 is a deficient number, since it is larger than the sum of its proper divisors (1).

13313917 is an equidigital number, since it uses as much as digits as its factorization.

13313917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1701, while the sum is 28.

The square root of 13313917 is about 3648.8240571450. The cubic root of 13313917 is about 237.0110613387.

The spelling of 13313917 in words is "thirteen million, three hundred thirteen thousand, nine hundred seventeen".