13317617 has 2 divisors, whose sum is σ = 13317618. Its totient is φ = 13317616.

The previous prime is 13317607. The next prime is 13317649. The reversal of 13317617 is 71671331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12952801 + 364816 = 3599^2 + 604^2 .

It is a cyclic number.

It is not a de Polignac number, because 13317617 - 2⁶ = 13317553 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13317617.

It is not a weakly prime, because it can be changed into another prime (13317607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6658808 + 6658809.

It is an arithmetic number, because the mean of its divisors is an integer number (6658809).

Almost surely, 2^13317617 is an apocalyptic number.

It is an amenable number.

13317617 is a deficient number, since it is larger than the sum of its proper divisors (1).

13317617 is an equidigital number, since it uses as much as digits as its factorization.

13317617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646, while the sum is 29.

The square root of 13317617 is about 3649.3310345870. The cubic root of 13317617 is about 237.0330148005.

Adding to 13317617 its reverse (71671331), we get a palindrome (84988948).

The spelling of 13317617 in words is "thirteen million, three hundred seventeen thousand, six hundred seventeen".