860860 has 96 divisors (see below), whose sum is σ = 2483712. Its totient is φ = 241920.

The previous prime is 860843. The next prime is 860861. The reversal of 860860 is 68068.

860860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860861) by changing a digit.

860860 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 31 ways as a sum of consecutive naturals, for example, 19999 + ... + 20041.

It is an arithmetic number, because the mean of its divisors is an integer number (25872).

2⁸⁶⁰⁸⁶⁰ 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 860860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1241856).

860860 is an abundant number, since it is smaller than the sum of its proper divisors (1622852).

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

860860 is a wasteful number, since it uses less digits than its factorization.

860860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 860860 is about 927.8254146120. The cubic root of 860860 is about 95.1285425215.

It can be divided in two parts, 8608 and 60, that added together give a palindrome (8668).

The spelling of 860860 in words is "eight hundred sixty thousand, eight hundred sixty".