860720 has 80 divisors (see below), whose sum is σ = 2410560. Its totient is φ = 279552.

The previous prime is 860701. The next prime is 860747. The reversal of 860720 is 27068.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

860720 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16214 + ... + 16266.

It is an arithmetic number, because the mean of its divisors is an integer number (30132).

2⁸⁶⁰⁷²⁰ is an apocalyptic number.

860720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 860720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1205280).

860720 is an abundant number, since it is smaller than the sum of its proper divisors (1549840).

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

860720 is a wasteful number, since it uses less digits than its factorization.

860720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 860720 is about 927.7499663164. The cubic root of 860720 is about 95.1233853849.

Adding to 860720 its reverse (27068), we get a palindrome (887788).

The spelling of 860720 in words is "eight hundred sixty thousand, seven hundred twenty".