12568217 has 2 divisors, whose sum is σ = 12568218. Its totient is φ = 12568216.

The previous prime is 12568211. The next prime is 12568247. The reversal of 12568217 is 71286521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12559936 + 8281 = 3544^2 + 91^2 .

It is an emirp because it is prime and its reverse (71286521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12568217 - 2¹⁰ = 12567193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12568211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6284108 + 6284109.

It is an arithmetic number, because the mean of its divisors is an integer number (6284109).

Almost surely, 2^12568217 is an apocalyptic number.

It is an amenable number.

12568217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12568217 is an equidigital number, since it uses as much as digits as its factorization.

12568217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 32.

The square root of 12568217 is about 3545.1681201320. The cubic root of 12568217 is about 232.5008563579.

The spelling of 12568217 in words is "twelve million, five hundred sixty-eight thousand, two hundred seventeen".