12696912 has 100 divisors (see below), whose sum is σ = 37494996. Its totient is φ = 4147200.

The previous prime is 12696899. The next prime is 12696917. The reversal of 12696912 is 21969621.

It can be written as a sum of positive squares in 2 ways, for example, as 9585216 + 3111696 = 3096^2 + 1764^2 .

It is a super-2 number, since 2×12696912² = 322423148671488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12696917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 125662 + ... + 125762.

Almost surely, 2^12696912 is an apocalyptic number.

12696912 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 12696912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18747498).

12696912 is an abundant number, since it is smaller than the sum of its proper divisors (24798084).

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

12696912 is a wasteful number, since it uses less digits than its factorization.

12696912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 203 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 12696912 is about 3563.2726530537. The cubic root of 12696912 is about 233.2917440615.

The spelling of 12696912 in words is "twelve million, six hundred ninety-six thousand, nine hundred twelve".