868284 has 36 divisors (see below), whose sum is σ = 2227680. Its totient is φ = 285120.

The previous prime is 868277. The next prime is 868291. The reversal of 868284 is 482868.

It is an interprime number because it is at equal distance from previous prime (868277) and next prime (868291).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 868284.

It is an unprimeable number.

868284 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, 3069 + ... + 3339.

It is an arithmetic number, because the mean of its divisors is an integer number (61880).

2⁸⁶⁸²⁸⁴ 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 868284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1113840).

868284 is an abundant number, since it is smaller than the sum of its proper divisors (1359396).

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

868284 is a wasteful number, since it uses less digits than its factorization.

868284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 365 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 868284 is about 931.8175787138. The cubic root of 868284 is about 95.4012209276.

The spelling of 868284 in words is "eight hundred sixty-eight thousand, two hundred eighty-four".