845688 has 32 divisors (see below), whose sum is σ = 2136960. Its totient is φ = 278880.

The previous prime is 845683. The next prime is 845717. The reversal of 845688 is 886548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3903 + ... + 4113.

It is an arithmetic number, because the mean of its divisors is an integer number (66780).

2⁸⁴⁵⁶⁸⁸ is an apocalyptic number.

It is an amenable number.

845688 is an abundant number, since it is smaller than the sum of its proper divisors (1291272).

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

845688 is a wasteful number, since it uses less digits than its factorization.

845688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 383 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 845688 is about 919.6129620661. The cubic root of 845688 is about 94.5663708878.

The spelling of 845688 in words is "eight hundred forty-five thousand, six hundred eighty-eight".