12589218 has 12 divisors (see below), whose sum is σ = 27276678. Its totient is φ = 4196400.

The previous prime is 12589189. The next prime is 12589237. The reversal of 12589218 is 81298521.

It can be written as a sum of positive squares in only one way, i.e., 11068929 + 1520289 = 3327^2 + 1233^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 349683 + ... + 349718.

Almost surely, 2^12589218 is an apocalyptic number.

12589218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12589218 is an abundant number, since it is smaller than the sum of its proper divisors (14687460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12589218 is a wasteful number, since it uses less digits than its factorization.

12589218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699409 (or 699406 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 12589218 is about 3548.1288026226. The cubic root of 12589218 is about 232.6302842467.

The spelling of 12589218 in words is "twelve million, five hundred eighty-nine thousand, two hundred eighteen".