12686875 has 20 divisors (see below), whose sum is σ = 16194816. Its totient is φ = 9932000.

The previous prime is 12686867. The next prime is 12686881. The reversal of 12686875 is 57868621.

It is not a de Polignac number, because 12686875 - 2³ = 12686867 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 32934 + ... + 33316.

Almost surely, 2^12686875 is an apocalyptic number.

12686875 is a deficient number, since it is larger than the sum of its proper divisors (3507941).

12686875 is an frugal number, since it uses more digits than its factorization.

12686875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 441 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 12686875 is about 3561.8639783125. The cubic root of 12686875 is about 233.2302549238.

The spelling of 12686875 in words is "twelve million, six hundred eighty-six thousand, eight hundred seventy-five".