12604889 has 4 divisors (see below), whose sum is σ = 13750800. Its totient is φ = 11458980.

The previous prime is 12604873. The next prime is 12604903. The reversal of 12604889 is 98840621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12604889 - 2⁴ = 12604873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12604829) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 572939 + ... + 572960.

It is an arithmetic number, because the mean of its divisors is an integer number (3437700).

Almost surely, 2^12604889 is an apocalyptic number.

It is an amenable number.

12604889 is a deficient number, since it is larger than the sum of its proper divisors (1145911).

12604889 is a wasteful number, since it uses less digits than its factorization.

12604889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145910.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 12604889 is about 3550.3364629285. The cubic root of 12604889 is about 232.7267699213.

The spelling of 12604889 in words is "twelve million, six hundred four thousand, eight hundred eighty-nine".