868028 has 24 divisors (see below), whose sum is σ = 1797600. Its totient is φ = 358848.

The previous prime is 868019. The next prime is 868033. The reversal of 868028 is 820868.

It is a junction number, because it is equal to n+sod(n) for n = 867985 and 868003.

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 868028.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278 + ... + 1346.

It is an arithmetic number, because the mean of its divisors is an integer number (74900).

2⁸⁶⁸⁰²⁸ 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 868028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (898800).

868028 is an abundant number, since it is smaller than the sum of its proper divisors (929572).

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

868028 is a wasteful number, since it uses less digits than its factorization.

868028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 868028 is about 931.6802026447. The cubic root of 868028 is about 95.3918441518.

The spelling of 868028 in words is "eight hundred sixty-eight thousand, twenty-eight".