12695648 has 72 divisors (see below), whose sum is σ = 30339792. Its totient is φ = 5121792.

The previous prime is 12695633. The next prime is 12695671. The reversal of 12695648 is 84659621.

It is a happy number.

It is a super-2 number, since 2×12695648² = 322358956279808, which contains 22 as substring.

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, 80786 + ... + 80942.

It is an arithmetic number, because the mean of its divisors is an integer number (421386).

Almost surely, 2^12695648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12695648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15169896).

12695648 is an abundant number, since it is smaller than the sum of its proper divisors (17644144).

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

12695648 is a wasteful number, since it uses less digits than its factorization.

12695648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 185 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 12695648 is about 3563.0952835982. The cubic root of 12695648 is about 233.2840022696.

The spelling of 12695648 in words is "twelve million, six hundred ninety-five thousand, six hundred forty-eight".