285683 has 4 divisors (see below), whose sum is σ = 298128. Its totient is φ = 273240.

The previous prime is 285673. The next prime is 285697. The reversal of 285683 is 386582.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 285683 - 2⁴ = 285667 is a prime.

It is a super-2 number, since 2×285683² = 163229552978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6188 + ... + 6233.

It is an arithmetic number, because the mean of its divisors is an integer number (74532).

2²⁸⁵⁶⁸³ is an apocalyptic number.

285683 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

285683 is a deficient number, since it is larger than the sum of its proper divisors (12445).

285683 is a wasteful number, since it uses less digits than its factorization.

285683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12444.

The product of its digits is 11520, while the sum is 32.

The square root of 285683 is about 534.4932179177. The cubic root of 285683 is about 65.8609714999.

The spelling of 285683 in words is "two hundred eighty-five thousand, six hundred eighty-three".