12717568 has 40 divisors (see below), whose sum is σ = 25902360. Its totient is φ = 6236160.

The previous prime is 12717563. The next prime is 12717569. The reversal of 12717568 is 86571721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12717563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29998 + ... + 30418.

It is an arithmetic number, because the mean of its divisors is an integer number (647559).

Almost surely, 2^12717568 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 12717568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12951180).

12717568 is an abundant number, since it is smaller than the sum of its proper divisors (13184792).

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

12717568 is an frugal number, since it uses more digits than its factorization.

12717568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 482 counting only the distinct ones).

The product of its digits is 23520, while the sum is 37.

The square root of 12717568 is about 3566.1699342572. The cubic root of 12717568 is about 233.4181859193.

The spelling of 12717568 in words is "twelve million, seven hundred seventeen thousand, five hundred sixty-eight".