12319717 has 2 divisors, whose sum is σ = 12319718. Its totient is φ = 12319716.

The previous prime is 12319711. The next prime is 12319729. The reversal of 12319717 is 71791321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11498881 + 820836 = 3391^2 + 906^2 .

It is a cyclic number.

It is not a de Polignac number, because 12319717 - 2⁷ = 12319589 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 (12319711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6159858 + 6159859.

It is an arithmetic number, because the mean of its divisors is an integer number (6159859).

Almost surely, 2^12319717 is an apocalyptic number.

It is an amenable number.

12319717 is a deficient number, since it is larger than the sum of its proper divisors (1).

12319717 is an equidigital number, since it uses as much as digits as its factorization.

12319717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646, while the sum is 31.

The square root of 12319717 is about 3509.9454411714. The cubic root of 12319717 is about 230.9583016005.

The spelling of 12319717 in words is "twelve million, three hundred nineteen thousand, seven hundred seventeen".