12697497 has 6 divisors (see below), whose sum is σ = 18340842. Its totient is φ = 8464992.

The previous prime is 12697469. The next prime is 12697501. The reversal of 12697497 is 79479621.

It can be written as a sum of positive squares in only one way, i.e., 12362256 + 335241 = 3516^2 + 579^2 .

It is not a de Polignac number, because 12697497 - 2¹⁶ = 12631961 is a prime.

It is a super-2 number, since 2×12697497² = 322452860130018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12693497) 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, 705408 + ... + 705425.

It is an arithmetic number, because the mean of its divisors is an integer number (3056807).

Almost surely, 2^12697497 is an apocalyptic number.

It is an amenable number.

12697497 is a deficient number, since it is larger than the sum of its proper divisors (5643345).

12697497 is a wasteful number, since it uses less digits than its factorization.

12697497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410839 (or 1410836 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 12697497 is about 3563.3547395678. The cubic root of 12697497 is about 233.2953269163.

The spelling of 12697497 in words is "twelve million, six hundred ninety-seven thousand, four hundred ninety-seven".