12668859 has 32 divisors (see below), whose sum is σ = 22717440. Its totient is φ = 6811776.

The previous prime is 12668857. The next prime is 12668881. The reversal of 12668859 is 95886621.

It is not a de Polignac number, because 12668859 - 2¹ = 12668857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12668857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1242 + ... + 5184.

It is an arithmetic number, because the mean of its divisors is an integer number (709920).

Almost surely, 2^12668859 is an apocalyptic number.

12668859 is a deficient number, since it is larger than the sum of its proper divisors (10048581).

12668859 is a wasteful number, since it uses less digits than its factorization.

12668859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976 (or 3970 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 12668859 is about 3559.3340669288. The cubic root of 12668859 is about 233.1198030644.

The spelling of 12668859 in words is "twelve million, six hundred sixty-eight thousand, eight hundred fifty-nine".