12697685 has 64 divisors (see below), whose sum is σ = 21288960. Its totient is φ = 7015680.

The previous prime is 12697673. The next prime is 12697703. The reversal of 12697685 is 58679621.

It is not a de Polignac number, because 12697685 - 2⁴ = 12697669 is a prime.

It is a super-2 number, since 2×12697685² = 322462408718450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 215186 + ... + 215244.

It is an arithmetic number, because the mean of its divisors is an integer number (332640).

Almost surely, 2^12697685 is an apocalyptic number.

It is an amenable number.

12697685 is a deficient number, since it is larger than the sum of its proper divisors (8591275).

12697685 is a wasteful number, since it uses less digits than its factorization.

12697685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138.

The product of its digits is 181440, while the sum is 44.

The square root of 12697685 is about 3563.3811191058. The cubic root of 12697685 is about 233.2964783060.

The spelling of 12697685 in words is "twelve million, six hundred ninety-seven thousand, six hundred eighty-five".