12862657 has 2 divisors, whose sum is σ = 12862658. Its totient is φ = 12862656.

The previous prime is 12862651. The next prime is 12862679. The reversal of 12862657 is 75626821.

It is a happy number.

12862657 is digitally balanced in base 3, 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., 8300161 + 4562496 = 2881^2 + 2136^2 .

It is a cyclic number.

It is not a de Polignac number, because 12862657 - 2¹⁵ = 12829889 is a prime.

It is not a weakly prime, because it can be changed into another prime (12862651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6431328 + 6431329.

It is an arithmetic number, because the mean of its divisors is an integer number (6431329).

Almost surely, 2^12862657 is an apocalyptic number.

It is an amenable number.

12862657 is a deficient number, since it is larger than the sum of its proper divisors (1).

12862657 is an equidigital number, since it uses as much as digits as its factorization.

12862657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 12862657 is about 3586.4546560636. The cubic root of 12862657 is about 234.3024858217.

The spelling of 12862657 in words is "twelve million, eight hundred sixty-two thousand, six hundred fifty-seven".