12986912 has 24 divisors (see below), whose sum is σ = 27073116. Its totient is φ = 6111232.

The previous prime is 12986879. The next prime is 12986921. The reversal of 12986912 is 21968921.

It can be written as a sum of positive squares in 2 ways, for example, as 12931216 + 55696 = 3596^2 + 236^2 .

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, 11393 + ... + 12480.

Almost surely, 2^12986912 is an apocalyptic number.

It is an amenable number.

12986912 is an abundant number, since it is smaller than the sum of its proper divisors (14086204).

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

12986912 is a wasteful number, since it uses less digits than its factorization.

12986912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23900 (or 23892 counting only the distinct ones).

The product of its digits is 15552, while the sum is 38.

The square root of 12986912 is about 3603.7358393756. The cubic root of 12986912 is about 235.0545338959.

Subtracting 12986912 from its reverse (21968921), we obtain a square (8982009 = 2997²).

The spelling of 12986912 in words is "twelve million, nine hundred eighty-six thousand, nine hundred twelve".