12897696 has 96 divisors (see below), whose sum is σ = 41005440. Its totient is φ = 3465216.

The previous prime is 12897683. The next prime is 12897697. The reversal of 12897696 is 69679821.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is not an unprimeable number, because it can be changed into a prime (12897697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10860 + ... + 11988.

It is an arithmetic number, because the mean of its divisors is an integer number (427140).

Almost surely, 2^12897696 is an apocalyptic number.

12897696 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 12897696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20502720).

12897696 is an abundant number, since it is smaller than the sum of its proper divisors (28107744).

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

12897696 is a wasteful number, since it uses less digits than its factorization.

12897696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1158 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 12897696 is about 3591.3362415680. The cubic root of 12897696 is about 234.5150463990.

The spelling of 12897696 in words is "twelve million, eight hundred ninety-seven thousand, six hundred ninety-six".