12957696 has 144 divisors (see below), whose sum is σ = 40458600. Its totient is φ = 3981312.

The previous prime is 12957673. The next prime is 12957731. The reversal of 12957696 is 69675921.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

Its product of digits (204120) is a multiple of the sum of its prime factors (84).

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, 350190 + ... + 350226.

Almost surely, 2^12957696 is an apocalyptic number.

12957696 is a gapful number since it is divisible by the number (16) 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 12957696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20229300).

12957696 is an abundant number, since it is smaller than the sum of its proper divisors (27500904).

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

12957696 is a wasteful number, since it uses less digits than its factorization.

12957696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 61 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 12957696 is about 3599.6799857765. The cubic root of 12957696 is about 234.8781381158.

The spelling of 12957696 in words is "twelve million, nine hundred fifty-seven thousand, six hundred ninety-six".