860805 has 48 divisors (see below), whose sum is σ = 1707264. Its totient is φ = 397440.

The previous prime is 860791. The next prime is 860809. The reversal of 860805 is 508068.

It is not a de Polignac number, because 860805 - 2⁴ = 860789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860809) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18292 + ... + 18338.

It is an arithmetic number, because the mean of its divisors is an integer number (35568).

2⁸⁶⁰⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

860805 is a deficient number, since it is larger than the sum of its proper divisors (846459).

860805 is a wasteful number, since it uses less digits than its factorization.

860805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 860805 is about 927.7957749419. The cubic root of 860805 is about 95.1265165702.

The spelling of 860805 in words is "eight hundred sixty thousand, eight hundred five".