860999 has 4 divisors (see below), whose sum is σ = 911664. Its totient is φ = 810336.

The previous prime is 860971. The next prime is 861001. The reversal of 860999 is 999068.

860999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 860999 - 2¹² = 856903 is a prime.

It is a Duffinian number.

860999 is a modest number, since divided by 999 gives 860 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25307 + ... + 25340.

It is an arithmetic number, because the mean of its divisors is an integer number (227916).

2⁸⁶⁰⁹⁹⁹ is an apocalyptic number.

860999 is a deficient number, since it is larger than the sum of its proper divisors (50665).

860999 is a wasteful number, since it uses less digits than its factorization.

860999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50664.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 860999 is about 927.9003179221. The cubic root of 860999 is about 95.1336622683.

The spelling of 860999 in words is "eight hundred sixty thousand, nine hundred ninety-nine".