12889696 has 12 divisors (see below), whose sum is σ = 25376652. Its totient is φ = 6444832.

The previous prime is 12889691. The next prime is 12889777. The reversal of 12889696 is 69698821.

It is a happy number.

It is a super-2 number, since 2×12889696² = 332288525944832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12889691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201370 + ... + 201433.

It is an arithmetic number, because the mean of its divisors is an integer number (2114721).

Almost surely, 2^12889696 is an apocalyptic number.

12889696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12889696 is a deficient number, since it is larger than the sum of its proper divisors (12486956).

12889696 is an equidigital number, since it uses as much as digits as its factorization.

12889696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402813 (or 402805 counting only the distinct ones).

The product of its digits is 373248, while the sum is 49.

The square root of 12889696 is about 3590.2222772413. Note that the first 4 decimals coincide. The cubic root of 12889696 is about 234.4665491480.

The spelling of 12889696 in words is "twelve million, eight hundred eighty-nine thousand, six hundred ninety-six".