12963820 has 12 divisors (see below), whose sum is σ = 27224064. Its totient is φ = 5185520.

The previous prime is 12963817. The next prime is 12963857. The reversal of 12963820 is 2836921.

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, 324076 + ... + 324115.

It is an arithmetic number, because the mean of its divisors is an integer number (2268672).

Almost surely, 2^12963820 is an apocalyptic number.

12963820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12963820 is an abundant number, since it is smaller than the sum of its proper divisors (14260244).

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

12963820 is a wasteful number, since it uses less digits than its factorization.

12963820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648200 (or 648198 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 12963820 is about 3600.5305164656. The cubic root of 12963820 is about 234.9151345894.

The spelling of 12963820 in words is "twelve million, nine hundred sixty-three thousand, eight hundred twenty".