12697299 has 6 divisors (see below), whose sum is σ = 18340556. Its totient is φ = 8464860.

The previous prime is 12697261. The next prime is 12697303. The reversal of 12697299 is 99279621.

It is not a de Polignac number, because 12697299 - 2⁷ = 12697171 is a prime.

It is a super-2 number, since 2×12697299² = 322442803790802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12697799) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 705397 + ... + 705414.

Almost surely, 2^12697299 is an apocalyptic number.

12697299 is a deficient number, since it is larger than the sum of its proper divisors (5643257).

12697299 is a wasteful number, since it uses less digits than its factorization.

12697299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410817 (or 1410814 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 12697299 is about 3563.3269566516. The cubic root of 12697299 is about 233.2941142700.

It can be divided in two parts, 12697 and 299, that added together give a square (12996 = 114²).

The spelling of 12697299 in words is "twelve million, six hundred ninety-seven thousand, two hundred ninety-nine".