12517712 has 20 divisors (see below), whose sum is σ = 25680276. Its totient is φ = 5890560.

The previous prime is 12517711. The next prime is 12517721. The reversal of 12517712 is 21771521.

It can be written as a sum of positive squares in 2 ways, for example, as 11316496 + 1201216 = 3364^2 + 1096^2 .

It is a super-2 number, since 2×12517712² = 313386227429888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12517711) 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, 22739 + ... + 23282.

Almost surely, 2^12517712 is an apocalyptic number.

It is an amenable number.

12517712 is an abundant number, since it is smaller than the sum of its proper divisors (13162564).

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

12517712 is a wasteful number, since it uses less digits than its factorization.

12517712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46046 (or 46040 counting only the distinct ones).

The product of its digits is 980, while the sum is 26.

The square root of 12517712 is about 3538.0378743026. The cubic root of 12517712 is about 232.1890057095.

The spelling of 12517712 in words is "twelve million, five hundred seventeen thousand, seven hundred twelve".