12573917 has 2 divisors, whose sum is σ = 12573918. Its totient is φ = 12573916.

The previous prime is 12573881. The next prime is 12573923. The reversal of 12573917 is 71937521.

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., 10666756 + 1907161 = 3266^2 + 1381^2 .

It is an emirp because it is prime and its reverse (71937521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12573917 - 2⁸ = 12573661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12503917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6286958 + 6286959.

It is an arithmetic number, because the mean of its divisors is an integer number (6286959).

Almost surely, 2^12573917 is an apocalyptic number.

It is an amenable number.

12573917 is a deficient number, since it is larger than the sum of its proper divisors (1).

12573917 is an equidigital number, since it uses as much as digits as its factorization.

12573917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13230, while the sum is 35.

The square root of 12573917 is about 3545.9719401033. The cubic root of 12573917 is about 232.5359993589.

The spelling of 12573917 in words is "twelve million, five hundred seventy-three thousand, nine hundred seventeen".