12189976 has 16 divisors (see below), whose sum is σ = 23644800. Its totient is φ = 5884704.

The previous prime is 12189959. The next prime is 12189979. The reversal of 12189976 is 67998121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12189979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26040 + ... + 26503.

It is an arithmetic number, because the mean of its divisors is an integer number (1477800).

Almost surely, 2^12189976 is an apocalyptic number.

It is an amenable number.

12189976 is a deficient number, since it is larger than the sum of its proper divisors (11454824).

12189976 is a wasteful number, since it uses less digits than its factorization.

12189976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52578 (or 52574 counting only the distinct ones).

The product of its digits is 54432, while the sum is 43.

The square root of 12189976 is about 3491.4146130186. The cubic root of 12189976 is about 230.1446852718.

The spelling of 12189976 in words is "twelve million, one hundred eighty-nine thousand, nine hundred seventy-six".