12989904 has 40 divisors (see below), whose sum is σ = 35533440. Its totient is φ = 4075008.

The previous prime is 12989897. The next prime is 12989927. The reversal of 12989904 is 40998921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7144 + ... + 8775.

It is an arithmetic number, because the mean of its divisors is an integer number (888336).

Almost surely, 2^12989904 is an apocalyptic number.

It is an amenable number.

12989904 is an abundant number, since it is smaller than the sum of its proper divisors (22543536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12989904 is a wasteful number, since it uses less digits than its factorization.

12989904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15947 (or 15941 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 12989904 is about 3604.1509402354. The cubic root of 12989904 is about 235.0725835848.

The spelling of 12989904 in words is "twelve million, nine hundred eighty-nine thousand, nine hundred four".