12617966 has 4 divisors (see below), whose sum is σ = 18926952. Its totient is φ = 6308982.

The previous prime is 12617953. The next prime is 12617981. The reversal of 12617966 is 66971621.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3154490 + ... + 3154493.

It is an arithmetic number, because the mean of its divisors is an integer number (4731738).

Almost surely, 2^12617966 is an apocalyptic number.

12617966 is a deficient number, since it is larger than the sum of its proper divisors (6308986).

12617966 is an equidigital number, since it uses as much as digits as its factorization.

12617966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6308985.

The product of its digits is 27216, while the sum is 38.

The square root of 12617966 is about 3552.1776419543. The cubic root of 12617966 is about 232.8072232577.

The spelling of 12617966 in words is "twelve million, six hundred seventeen thousand, nine hundred sixty-six".