12318866 has 8 divisors (see below), whose sum is σ = 21118080. Its totient is φ = 5279508.

The previous prime is 12318857. The next prime is 12318871. The reversal of 12318866 is 66881321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439946 + ... + 439973.

It is an arithmetic number, because the mean of its divisors is an integer number (2639760).

Almost surely, 2^12318866 is an apocalyptic number.

12318866 is a deficient number, since it is larger than the sum of its proper divisors (8799214).

12318866 is an equidigital number, since it uses as much as digits as its factorization.

12318866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879928.

The product of its digits is 13824, while the sum is 35.

The square root of 12318866 is about 3509.8242121223. The cubic root of 12318866 is about 230.9529835660.

The spelling of 12318866 in words is "twelve million, three hundred eighteen thousand, eight hundred sixty-six".