12917968 has 30 divisors (see below), whose sum is σ = 29116626. Its totient is φ = 5535936.

The previous prime is 12917959. The next prime is 12917981. The reversal of 12917968 is 86971921.

It can be written as a sum of positive squares in only one way, i.e., 10188864 + 2729104 = 3192^2 + 1652^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7455 + ... + 9022.

Almost surely, 2^12917968 is an apocalyptic number.

It is an amenable number.

12917968 is an abundant number, since it is smaller than the sum of its proper divisors (16198658).

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

12917968 is a wasteful number, since it uses less digits than its factorization.

12917968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16499 (or 16486 counting only the distinct ones).

The product of its digits is 54432, while the sum is 43.

The square root of 12917968 is about 3594.1574812465. The cubic root of 12917968 is about 234.6378487052.

The spelling of 12917968 in words is "twelve million, nine hundred seventeen thousand, nine hundred sixty-eight".