868020 has 96 divisors (see below), whose sum is σ = 2757888. Its totient is φ = 202752.

The previous prime is 868019. The next prime is 868033. The reversal of 868020 is 20868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23442 + ... + 23478.

It is an arithmetic number, because the mean of its divisors is an integer number (28728).

2⁸⁶⁸⁰²⁰ 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 868020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1378944).

868020 is an abundant number, since it is smaller than the sum of its proper divisors (1889868).

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

868020 is a wasteful number, since it uses less digits than its factorization.

868020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 868020 is about 931.6759093161. The cubic root of 868020 is about 95.3915510979.

Adding to 868020 its reverse (20868), we get a palindrome (888888).

The spelling of 868020 in words is "eight hundred sixty-eight thousand, twenty".