12985312 has 24 divisors (see below), whose sum is σ = 26162136. Its totient is φ = 6340992.

The previous prime is 12985289. The next prime is 12985319. The reversal of 12985312 is 21358921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12985319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3343 + ... + 6094.

It is an arithmetic number, because the mean of its divisors is an integer number (1090089).

Almost surely, 2^12985312 is an apocalyptic number.

It is an amenable number.

12985312 is an abundant number, since it is smaller than the sum of its proper divisors (13176824).

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

12985312 is an equidigital number, since it uses as much as digits as its factorization.

12985312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9490 (or 9482 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 12985312 is about 3603.5138406838. The cubic root of 12985312 is about 235.0448805182.

The spelling of 12985312 in words is "twelve million, nine hundred eighty-five thousand, three hundred twelve".