12446889 has 32 divisors (see below), whose sum is σ = 20643840. Its totient is φ = 6495552.

The previous prime is 12446879. The next prime is 12446893. The reversal of 12446889 is 98864421.

It is not a de Polignac number, because 12446889 - 2⁵ = 12446857 is a prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 12446889.

It is not an unprimeable number, because it can be changed into a prime (12446809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34492 + ... + 34850.

It is an arithmetic number, because the mean of its divisors is an integer number (645120).

Almost surely, 2^12446889 is an apocalyptic number.

It is an amenable number.

12446889 is a deficient number, since it is larger than the sum of its proper divisors (8196951).

12446889 is a wasteful number, since it uses less digits than its factorization.

12446889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509.

The product of its digits is 110592, while the sum is 42.

The square root of 12446889 is about 3528.0148809210. The cubic root of 12446889 is about 231.7502824875.

The spelling of 12446889 in words is "twelve million, four hundred forty-six thousand, eight hundred eighty-nine".