859712 has 56 divisors (see below), whose sum is σ = 2072640. Its totient is φ = 345600.

The previous prime is 859709. The next prime is 859751. The reversal of 859712 is 217958.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8462 + ... + 8562.

2⁸⁵⁹⁷¹² 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 859712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1036320).

859712 is an abundant number, since it is smaller than the sum of its proper divisors (1212928).

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

859712 is a wasteful number, since it uses less digits than its factorization.

859712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 129 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 859712 is about 927.2065573539. The cubic root of 859712 is about 95.0862374826.

The spelling of 859712 in words is "eight hundred fifty-nine thousand, seven hundred twelve".