12965688 has 96 divisors (see below), whose sum is σ = 37464960. Its totient is φ = 4043520.

The previous prime is 12965671. The next prime is 12965707. The reversal of 12965688 is 88656921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82506 + ... + 82662.

It is an arithmetic number, because the mean of its divisors is an integer number (390260).

Almost surely, 2^12965688 is an apocalyptic number.

12965688 is a gapful number since it is divisible by the number (18) 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 12965688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18732480).

12965688 is an abundant number, since it is smaller than the sum of its proper divisors (24499272).

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

12965688 is a wasteful number, since it uses less digits than its factorization.

12965688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 230 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 12965688 is about 3600.7899133385. The cubic root of 12965688 is about 234.9264172822.

The spelling of 12965688 in words is "twelve million, nine hundred sixty-five thousand, six hundred eighty-eight".