12695657 has 8 divisors (see below), whose sum is σ = 13801536. Its totient is φ = 11608272.

The previous prime is 12695633. The next prime is 12695671. The reversal of 12695657 is 75659621.

12695657 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12695657 - 2¹⁴ = 12679273 is a prime.

It is a super-2 number, since 2×12695657² = 322359413323298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12698657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3173 + ... + 5954.

It is an arithmetic number, because the mean of its divisors is an integer number (1725192).

Almost surely, 2^12695657 is an apocalyptic number.

It is an amenable number.

12695657 is a deficient number, since it is larger than the sum of its proper divisors (1105879).

12695657 is a wasteful number, since it uses less digits than its factorization.

12695657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9247.

The product of its digits is 113400, while the sum is 41.

The square root of 12695657 is about 3563.0965465449. The cubic root of 12695657 is about 233.2840573950.

The spelling of 12695657 in words is "twelve million, six hundred ninety-five thousand, six hundred fifty-seven".