12831636 has 12 divisors (see below), whose sum is σ = 29940512. Its totient is φ = 4277208.

The previous prime is 12831619. The next prime is 12831641. The reversal of 12831636 is 63613821.

12831636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534640 + ... + 534663.

Almost surely, 2^12831636 is an apocalyptic number.

It is an amenable number.

12831636 is an abundant number, since it is smaller than the sum of its proper divisors (17108876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12831636 is a wasteful number, since it uses less digits than its factorization.

12831636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069310 (or 1069308 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 12831636 is about 3582.1273009205. The cubic root of 12831636 is about 234.1139776396.

The spelling of 12831636 in words is "twelve million, eight hundred thirty-one thousand, six hundred thirty-six".