12686965 has 16 divisors (see below), whose sum is σ = 16228800. Its totient is φ = 9493632.

The previous prime is 12686953. The next prime is 12686969. The reversal of 12686965 is 56968621.

12686965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12686965 is a prime.

It is a super-2 number, since 2×12686965² = 321918161822450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12686969) 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, 7081 + ... + 8689.

It is an arithmetic number, because the mean of its divisors is an integer number (1014300).

Almost surely, 2^12686965 is an apocalyptic number.

It is an amenable number.

12686965 is a deficient number, since it is larger than the sum of its proper divisors (3541835).

12686965 is a wasteful number, since it uses less digits than its factorization.

12686965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716.

The product of its digits is 155520, while the sum is 43.

The square root of 12686965 is about 3561.8766121246. The cubic root of 12686965 is about 233.2308064301.

The spelling of 12686965 in words is "twelve million, six hundred eighty-six thousand, nine hundred sixty-five".