12285889 has 16 divisors (see below), whose sum is σ = 15814656. Its totient is φ = 9262800.

The previous prime is 12285881. The next prime is 12285899. The reversal of 12285889 is 98858221.

12285889 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12285889 - 2³ = 12285881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12285881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187 + ... + 4960.

It is an arithmetic number, because the mean of its divisors is an integer number (988416).

Almost surely, 2^12285889 is an apocalyptic number.

It is an amenable number.

12285889 is a deficient number, since it is larger than the sum of its proper divisors (3528767).

12285889 is a wasteful number, since it uses less digits than its factorization.

12285889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5196.

The product of its digits is 92160, while the sum is 43.

The square root of 12285889 is about 3505.1232503294. The cubic root of 12285889 is about 230.7467161311.

It can be divided in two parts, 1228 and 5889, that added together give a palindrome (7117).

The spelling of 12285889 in words is "twelve million, two hundred eighty-five thousand, eight hundred eighty-nine".