85684 has 12 divisors (see below), whose sum is σ = 155008. Its totient is φ = 41400.
The previous prime is 85669. The next prime is 85691. The reversal of 85684 is 48658.
It is a Harshad number since it is a multiple of its sum of digits (31).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222 + ... + 469.
285684 is an apocalyptic number.
It is an amenable number.
85684 is a deficient number, since it is larger than the sum of its proper divisors (69324).
85684 is a wasteful number, since it uses less digits than its factorization.
85684 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 726 (or 724 counting only the distinct ones).
The product of its digits is 7680, while the sum is 31.
The square root of 85684 is about 292.7182946110. The cubic root of 85684 is about 44.0859202657.
The spelling of 85684 in words is "eighty-five thousand, six hundred eighty-four".
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