12985889 has 8 divisors (see below), whose sum is σ = 15203328. Its totient is φ = 10859040.

The previous prime is 12985867. The next prime is 12985891. The reversal of 12985889 is 98858921.

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

It is a cyclic number.

It is not a de Polignac number, because 12985889 - 2⁸ = 12985633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12985289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22337 + ... + 22910.

It is an arithmetic number, because the mean of its divisors is an integer number (1900416).

Almost surely, 2^12985889 is an apocalyptic number.

It is an amenable number.

12985889 is a deficient number, since it is larger than the sum of its proper divisors (2217439).

12985889 is an equidigital number, since it uses as much as digits as its factorization.

12985889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45295.

The product of its digits is 414720, while the sum is 50.

The square root of 12985889 is about 3603.5939005387. The cubic root of 12985889 is about 235.0483618590.

The spelling of 12985889 in words is "twelve million, nine hundred eighty-five thousand, eight hundred eighty-nine".