12868217 has 2 divisors, whose sum is σ = 12868218. Its totient is φ = 12868216.

The previous prime is 12868211. The next prime is 12868283. The reversal of 12868217 is 71286821.

12868217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8185321 + 4682896 = 2861^2 + 2164^2 .

It is a cyclic number.

It is not a de Polignac number, because 12868217 - 2¹⁶ = 12802681 is a prime.

It is not a weakly prime, because it can be changed into another prime (12868211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6434108 + 6434109.

It is an arithmetic number, because the mean of its divisors is an integer number (6434109).

Almost surely, 2^12868217 is an apocalyptic number.

It is an amenable number.

12868217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12868217 is an equidigital number, since it uses as much as digits as its factorization.

12868217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 35.

The square root of 12868217 is about 3587.2297110723. The cubic root of 12868217 is about 234.3362407491.

The spelling of 12868217 in words is "twelve million, eight hundred sixty-eight thousand, two hundred seventeen".