13437317 has 2 divisors, whose sum is σ = 13437318. Its totient is φ = 13437316.

The previous prime is 13437271. The next prime is 13437331. The reversal of 13437317 is 71373431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13205956 + 231361 = 3634^2 + 481^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13437317 is a prime.

It is a super-2 number, since 2×13437317² = 361122976316978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13437317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13437397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6718658 + 6718659.

It is an arithmetic number, because the mean of its divisors is an integer number (6718659).

Almost surely, 2^13437317 is an apocalyptic number.

It is an amenable number.

13437317 is a deficient number, since it is larger than the sum of its proper divisors (1).

13437317 is an equidigital number, since it uses as much as digits as its factorization.

13437317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 29.

The square root of 13437317 is about 3665.6946135760. The cubic root of 13437317 is about 237.7410560828.

The spelling of 13437317 in words is "thirteen million, four hundred thirty-seven thousand, three hundred seventeen".