845712 has 60 divisors (see below), whose sum is σ = 2708160. Its totient is φ = 241344.

The previous prime is 845683. The next prime is 845717. The reversal of 845712 is 217548.

845712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (845717) by changing a digit.

845712 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 11 ways as a sum of consecutive naturals, for example, 589 + ... + 1427.

It is an arithmetic number, because the mean of its divisors is an integer number (45136).

2⁸⁴⁵⁷¹² 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 845712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1354080).

845712 is an abundant number, since it is smaller than the sum of its proper divisors (1862448).

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

845712 is a wasteful number, since it uses less digits than its factorization.

845712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860 (or 851 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 845712 is about 919.6260109414. The cubic root of 845712 is about 94.5672654539.

The spelling of 845712 in words is "eight hundred forty-five thousand, seven hundred twelve".