12989812 has 48 divisors (see below), whose sum is σ = 26046720. Its totient is φ = 5616000.

The previous prime is 12989807. The next prime is 12989861. The reversal of 12989812 is 21898921.

12989812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128562 + ... + 128662.

It is an arithmetic number, because the mean of its divisors is an integer number (542640).

Almost surely, 2^12989812 is an apocalyptic number.

It is an amenable number.

12989812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

12989812 is a wasteful number, since it uses less digits than its factorization.

12989812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 230 counting only the distinct ones).

The product of its digits is 20736, while the sum is 40.

The square root of 12989812 is about 3604.1381771514. The cubic root of 12989812 is about 235.0720286223.

The spelling of 12989812 in words is "twelve million, nine hundred eighty-nine thousand, eight hundred twelve".