12289976 has 24 divisors (see below), whose sum is σ = 23429280. Its totient is φ = 6043728.

The previous prime is 12289943. The next prime is 12289999. The reversal of 12289976 is 67998221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55001 + ... + 55223.

It is an arithmetic number, because the mean of its divisors is an integer number (976220).

Almost surely, 2^12289976 is an apocalyptic number.

It is an amenable number.

12289976 is a deficient number, since it is larger than the sum of its proper divisors (11139304).

12289976 is an equidigital number, since it uses as much as digits as its factorization.

12289976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 308 counting only the distinct ones).

The product of its digits is 108864, while the sum is 44.

The square root of 12289976 is about 3505.7062056025. The cubic root of 12289976 is about 230.7722998794.

The spelling of 12289976 in words is "twelve million, two hundred eighty-nine thousand, nine hundred seventy-six".