859166 has 24 divisors (see below), whose sum is σ = 1637496. Its totient is φ = 334320.

The previous prime is 859121. The next prime is 859181. The reversal of 859166 is 661958.

859166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 859166.

It is an unprimeable number.

859166 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 11 ways as a sum of consecutive naturals, for example, 680 + ... + 1476.

It is an arithmetic number, because the mean of its divisors is an integer number (68229).

2⁸⁵⁹¹⁶⁶ is an apocalyptic number.

859166 is a deficient number, since it is larger than the sum of its proper divisors (778330).

859166 is a wasteful number, since it uses less digits than its factorization.

859166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 817 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 859166 is about 926.9120778154. The cubic root of 859166 is about 95.0661035772.

The spelling of 859166 in words is "eight hundred fifty-nine thousand, one hundred sixty-six".