12917667 has 16 divisors (see below), whose sum is σ = 19980032. Its totient is φ = 7270560.

The previous prime is 12917657. The next prime is 12917677. The reversal of 12917667 is 76671921.

12917667 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12917657) and next prime (12917677).

It is a de Polignac number, because none of the positive numbers 2^k-12917667 is a prime.

It is a super-2 number, since 2×12917667² = 333732241445778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12917627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3184 + ... + 5997.

It is an arithmetic number, because the mean of its divisors is an integer number (1248752).

Almost surely, 2^12917667 is an apocalyptic number.

12917667 is a deficient number, since it is larger than the sum of its proper divisors (7062365).

12917667 is an equidigital number, since it uses as much as digits as its factorization.

12917667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9258.

The product of its digits is 31752, while the sum is 39.

The square root of 12917667 is about 3594.1156074896. The cubic root of 12917667 is about 234.6360262684.

The spelling of 12917667 in words is "twelve million, nine hundred seventeen thousand, six hundred sixty-seven".