12817668 has 24 divisors (see below), whose sum is σ = 30095968. Its totient is φ = 4245696.

The previous prime is 12817667. The next prime is 12817687. The reversal of 12817668 is 86671821.

It is a super-2 number, since 2×12817668² = 328585225916448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12817661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1321 + ... + 5232.

Almost surely, 2^12817668 is an apocalyptic number.

It is an amenable number.

12817668 is an abundant number, since it is smaller than the sum of its proper divisors (17278300).

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

12817668 is a wasteful number, since it uses less digits than its factorization.

12817668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6723 (or 6721 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 12817668 is about 3580.1770905920. The cubic root of 12817668 is about 234.0289977944.

The spelling of 12817668 in words is "twelve million, eight hundred seventeen thousand, six hundred sixty-eight".