12889318 has 16 divisors (see below), whose sum is σ = 21109536. Its totient is φ = 5866560.

The previous prime is 12889313. The next prime is 12889333. The reversal of 12889318 is 81398821.

12889318 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12889318² = 332269037010248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12889313) 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, 1498 + ... + 5293.

It is an arithmetic number, because the mean of its divisors is an integer number (1319346).

Almost surely, 2^12889318 is an apocalyptic number.

12889318 is a deficient number, since it is larger than the sum of its proper divisors (8220218).

12889318 is a wasteful number, since it uses less digits than its factorization.

12889318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6879.

The product of its digits is 27648, while the sum is 40.

The square root of 12889318 is about 3590.1696338753. The cubic root of 12889318 is about 234.4642571564.

The spelling of 12889318 in words is "twelve million, eight hundred eighty-nine thousand, three hundred eighteen".