13393717 has 2 divisors, whose sum is σ = 13393718. Its totient is φ = 13393716.

The previous prime is 13393697. The next prime is 13393733. The reversal of 13393717 is 71739331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12895281 + 498436 = 3591^2 + 706^2 .

It is a cyclic number.

It is not a de Polignac number, because 13393717 - 2¹⁹ = 12869429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13393747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6696858 + 6696859.

It is an arithmetic number, because the mean of its divisors is an integer number (6696859).

Almost surely, 2^13393717 is an apocalyptic number.

It is an amenable number.

13393717 is a deficient number, since it is larger than the sum of its proper divisors (1).

13393717 is an equidigital number, since it uses as much as digits as its factorization.

13393717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11907, while the sum is 34.

The square root of 13393717 is about 3659.7427505222. The cubic root of 13393717 is about 237.4836450418.

The spelling of 13393717 in words is "thirteen million, three hundred ninety-three thousand, seven hundred seventeen".