12857297 has 2 divisors, whose sum is σ = 12857298. Its totient is φ = 12857296.

The previous prime is 12857279. The next prime is 12857333. The reversal of 12857297 is 79275821.

12857297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (12857279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11566801 + 1290496 = 3401^2 + 1136^2 .

It is a cyclic number.

It is not a de Polignac number, because 12857297 - 2¹⁰ = 12856273 is a prime.

It is a super-2 number, since 2×12857297² = 330620172292418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12857267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6428648 + 6428649.

It is an arithmetic number, because the mean of its divisors is an integer number (6428649).

Almost surely, 2^12857297 is an apocalyptic number.

It is an amenable number.

12857297 is a deficient number, since it is larger than the sum of its proper divisors (1).

12857297 is an equidigital number, since it uses as much as digits as its factorization.

12857297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 41.

The square root of 12857297 is about 3585.7073221332. The cubic root of 12857297 is about 234.2699358903.

The spelling of 12857297 in words is "twelve million, eight hundred fifty-seven thousand, two hundred ninety-seven".