859432 has 32 divisors (see below), whose sum is σ = 1872000. Its totient is φ = 362304.

The previous prime is 859423. The next prime is 859433. The reversal of 859432 is 234958.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 859394 and 859403.

It is not an unprimeable number, because it can be changed into a prime (859433) by changing a digit.

859432 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5694 + ... + 5842.

It is an arithmetic number, because the mean of its divisors is an integer number (58500).

2⁸⁵⁹⁴³² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 859432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (936000).

859432 is an abundant number, since it is smaller than the sum of its proper divisors (1012568).

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

859432 is a wasteful number, since it uses less digits than its factorization.

859432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 261 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 859432 is about 927.0555538909. The cubic root of 859432 is about 95.0759134681.

The spelling of 859432 in words is "eight hundred fifty-nine thousand, four hundred thirty-two".