12860289 has 56 divisors (see below), whose sum is σ = 22034880. Its totient is φ = 7441632.

The previous prime is 12860273. The next prime is 12860293. The reversal of 12860289 is 98206821.

It is not a de Polignac number, because 12860289 - 2⁴ = 12860273 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12860219) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 217942 + ... + 218000.

It is an arithmetic number, because the mean of its divisors is an integer number (393480).

Almost surely, 2^12860289 is an apocalyptic number.

It is an amenable number.

12860289 is a deficient number, since it is larger than the sum of its proper divisors (9174591).

12860289 is an equidigital number, since it uses as much as digits as its factorization.

12860289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 12860289 is about 3586.1245098295. The cubic root of 12860289 is about 234.2881066687.

The spelling of 12860289 in words is "twelve million, eight hundred sixty thousand, two hundred eighty-nine".