13904017 has 2 divisors, whose sum is σ = 13904018. Its totient is φ = 13904016.

The previous prime is 13904003. The next prime is 13904039. The reversal of 13904017 is 71040931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13771521 + 132496 = 3711^2 + 364^2 .

It is a cyclic number.

It is not a de Polignac number, because 13904017 - 2⁷ = 13903889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13903982 and 13904000.

It is not a weakly prime, because it can be changed into another prime (13904047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6952008 + 6952009.

It is an arithmetic number, because the mean of its divisors is an integer number (6952009).

Almost surely, 2^13904017 is an apocalyptic number.

It is an amenable number.

13904017 is a deficient number, since it is larger than the sum of its proper divisors (1).

13904017 is an equidigital number, since it uses as much as digits as its factorization.

13904017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 13904017 is about 3728.8090592038. The cubic root of 13904017 is about 240.4621707637.

Adding to 13904017 its reverse (71040931), we get a palindrome (84944948).

The spelling of 13904017 in words is "thirteen million, nine hundred four thousand, seventeen".