860520 has 64 divisors (see below), whose sum is σ = 2643840. Its totient is φ = 224000.

The previous prime is 860513. The next prime is 860533. The reversal of 860520 is 25068.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8470 + ... + 8570.

It is an arithmetic number, because the mean of its divisors is an integer number (41310).

2⁸⁶⁰⁵²⁰ 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 860520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1321920).

860520 is an abundant number, since it is smaller than the sum of its proper divisors (1783320).

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

860520 is a wasteful number, since it uses less digits than its factorization.

860520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 860520 is about 927.6421723919. The cubic root of 860520 is about 95.1160170766.

Adding to 860520 its reverse (25068), we get a palindrome (885588).

The spelling of 860520 in words is "eight hundred sixty thousand, five hundred twenty".