12506717 has 2 divisors, whose sum is σ = 12506718. Its totient is φ = 12506716.

The previous prime is 12506707. The next prime is 12506737. The reversal of 12506717 is 71760521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9647236 + 2859481 = 3106^2 + 1691^2 .

It is a cyclic number.

It is not a de Polignac number, because 12506717 - 2¹⁴ = 12490333 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 12506717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12506707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6253358 + 6253359.

It is an arithmetic number, because the mean of its divisors is an integer number (6253359).

Almost surely, 2^12506717 is an apocalyptic number.

It is an amenable number.

12506717 is a deficient number, since it is larger than the sum of its proper divisors (1).

12506717 is an equidigital number, since it uses as much as digits as its factorization.

12506717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 12506717 is about 3536.4837056036. The cubic root of 12506717 is about 232.1210043064.

The spelling of 12506717 in words is "twelve million, five hundred six thousand, seven hundred seventeen".