12836889 has 12 divisors (see below), whose sum is σ = 19968676. Its totient is φ = 7899552.

The previous prime is 12836869. The next prime is 12836899. The reversal of 12836889 is 98863821.

It can be written as a sum of positive squares in 2 ways, for example, as 4473225 + 8363664 = 2115^2 + 2892^2 .

It is not a de Polignac number, because 12836889 - 2⁸ = 12836633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12836809) 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, 54742 + ... + 54975.

Almost surely, 2^12836889 is an apocalyptic number.

It is an amenable number.

12836889 is a deficient number, since it is larger than the sum of its proper divisors (7131787).

12836889 is a wasteful number, since it uses less digits than its factorization.

12836889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109736 (or 109733 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 12836889 is about 3582.8604494175. The cubic root of 12836889 is about 234.1459203824.

The spelling of 12836889 in words is "twelve million, eight hundred thirty-six thousand, eight hundred eighty-nine".