12859432 has 16 divisors (see below), whose sum is σ = 24383700. Its totient is φ = 6357120.

The previous prime is 12859417. The next prime is 12859433. The reversal of 12859432 is 23495821.

It can be written as a sum of positive squares in 2 ways, for example, as 12859396 + 36 = 3586^2 + 6^2 .

It is not an unprimeable number, because it can be changed into a prime (12859433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8319 + ... + 9742.

Almost surely, 2^12859432 is an apocalyptic number.

It is an amenable number.

12859432 is a deficient number, since it is larger than the sum of its proper divisors (11524268).

12859432 is a wasteful number, since it uses less digits than its factorization.

12859432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18156 (or 18152 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 12859432 is about 3586.0050195168. The cubic root of 12859432 is about 234.2829022920.

The spelling of 12859432 in words is "twelve million, eight hundred fifty-nine thousand, four hundred thirty-two".