12856959 has 12 divisors (see below), whose sum is σ = 18602376. Its totient is φ = 8556912.

The previous prime is 12856933. The next prime is 12856969. The reversal of 12856959 is 95965821.

It is not a de Polignac number, because 12856959 - 2⁸ = 12856703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12856969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9184 + ... + 10490.

It is an arithmetic number, because the mean of its divisors is an integer number (1550198).

Almost surely, 2^12856959 is an apocalyptic number.

12856959 is a deficient number, since it is larger than the sum of its proper divisors (5745417).

12856959 is a wasteful number, since it uses less digits than its factorization.

12856959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406 (or 2403 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 12856959 is about 3585.6601902579. The cubic root of 12856959 is about 234.2678829982.

The spelling of 12856959 in words is "twelve million, eight hundred fifty-six thousand, nine hundred fifty-nine".