12695397 has 32 divisors (see below), whose sum is σ = 20151936. Its totient is φ = 7008000.

The previous prime is 12695393. The next prime is 12695407. The reversal of 12695397 is 79359621.

It is not a de Polignac number, because 12695397 - 2² = 12695393 is a prime.

It is a super-2 number, since 2×12695397² = 322346209975218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12695393) 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 in 31 ways as a sum of consecutive naturals, for example, 43183 + ... + 43475.

It is an arithmetic number, because the mean of its divisors is an integer number (629748).

Almost surely, 2^12695397 is an apocalyptic number.

It is an amenable number.

12695397 is a deficient number, since it is larger than the sum of its proper divisors (7456539).

12695397 is a wasteful number, since it uses less digits than its factorization.

12695397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421.

The product of its digits is 102060, while the sum is 42.

The square root of 12695397 is about 3563.0600612395. The cubic root of 12695397 is about 233.2824648748.

It can be divided in two parts, 1269 and 5397, that added together give a palindrome (6666).

The spelling of 12695397 in words is "twelve million, six hundred ninety-five thousand, three hundred ninety-seven".