12999936 has 36 divisors (see below), whose sum is σ = 34600832. Its totient is φ = 4333056.

The previous prime is 12999929. The next prime is 12999937. The reversal of 12999936 is 63999921.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12999937) 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, 7696 + ... + 9231.

Almost surely, 2^12999936 is an apocalyptic number.

12999936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12999936 is an abundant number, since it is smaller than the sum of its proper divisors (21600896).

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

12999936 is an equidigital number, since it uses as much as digits as its factorization.

12999936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16946 (or 16932 counting only the distinct ones).

The product of its digits is 236196, while the sum is 48.

The square root of 12999936 is about 3605.5424002499. The cubic root of 12999936 is about 235.1330829114.

The spelling of 12999936 in words is "twelve million, nine hundred ninety-nine thousand, nine hundred thirty-six".