283864 has 32 divisors (see below), whose sum is σ = 629280. Its totient is φ = 117504.

The previous prime is 283861. The next prime is 283873. The reversal of 283864 is 468382.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283861) 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, 2004 + ... + 2140.

It is an arithmetic number, because the mean of its divisors is an integer number (19665).

2²⁸³⁸⁶⁴ 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 283864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314640).

283864 is an abundant number, since it is smaller than the sum of its proper divisors (345416).

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

283864 is a wasteful number, since it uses less digits than its factorization.

283864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 183 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 283864 is about 532.7888887730. The cubic root of 283864 is about 65.7208905055.

The spelling of 283864 in words is "two hundred eighty-three thousand, eight hundred sixty-four".