12897268 has 6 divisors (see below), whose sum is σ = 22570226. Its totient is φ = 6448632.

The previous prime is 12897263. The next prime is 12897277. The reversal of 12897268 is 86279821.

It can be written as a sum of positive squares in only one way, i.e., 10942864 + 1954404 = 3308^2 + 1398^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12897263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1612155 + ... + 1612162.

Almost surely, 2^12897268 is an apocalyptic number.

It is an amenable number.

12897268 is a deficient number, since it is larger than the sum of its proper divisors (9672958).

12897268 is a wasteful number, since it uses less digits than its factorization.

12897268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224321 (or 3224319 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 12897268 is about 3591.2766532251. The cubic root of 12897268 is about 234.5124523039.

The spelling of 12897268 in words is "twelve million, eight hundred ninety-seven thousand, two hundred sixty-eight".