12697449 has 16 divisors (see below), whose sum is σ = 17971200. Its totient is φ = 7957136.

The previous prime is 12697441. The next prime is 12697459. The reversal of 12697449 is 94479621.

It is a cyclic number.

It is not a de Polignac number, because 12697449 - 2³ = 12697441 is a prime.

It is a super-2 number, since 2×12697449² = 322450422215202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12697449.

It is not an unprimeable number, because it can be changed into a prime (12697441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2512 + ... + 5630.

It is an arithmetic number, because the mean of its divisors is an integer number (1123200).

Almost surely, 2^12697449 is an apocalyptic number.

It is an amenable number.

12697449 is a deficient number, since it is larger than the sum of its proper divisors (5273751).

12697449 is a wasteful number, since it uses less digits than its factorization.

12697449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204.

The product of its digits is 108864, while the sum is 42.

The square root of 12697449 is about 3563.3480043352. The cubic root of 12697449 is about 233.2950329426.

The spelling of 12697449 in words is "twelve million, six hundred ninety-seven thousand, four hundred forty-nine".