12862812 has 36 divisors (see below), whose sum is σ = 31891160. Its totient is φ = 4034304.

The previous prime is 12862789. The next prime is 12862823. The reversal of 12862812 is 21826821.

It is a self number, because there is not a number n which added to its sum of digits gives 12862812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1614 + ... + 5322.

Almost surely, 2^12862812 is an apocalyptic number.

12862812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12862812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15945580).

12862812 is an abundant number, since it is smaller than the sum of its proper divisors (19028348).

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

12862812 is a wasteful number, since it uses less digits than its factorization.

12862812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750 (or 3731 counting only the distinct ones).

The product of its digits is 3072, while the sum is 30.

The square root of 12862812 is about 3586.4762650825. The cubic root of 12862812 is about 234.3034269632.

The spelling of 12862812 in words is "twelve million, eight hundred sixty-two thousand, eight hundred twelve".