859894 has 16 divisors (see below), whose sum is σ = 1561248. Its totient is φ = 346752.

The previous prime is 859891. The next prime is 859913. The reversal of 859894 is 498958.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 859894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1569 + ... + 2044.

It is an arithmetic number, because the mean of its divisors is an integer number (97578).

2⁸⁵⁹⁸⁹⁴ is an apocalyptic number.

859894 is a deficient number, since it is larger than the sum of its proper divisors (701354).

859894 is a wasteful number, since it uses less digits than its factorization.

859894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639.

The product of its digits is 103680, while the sum is 43.

The square root of 859894 is about 927.3046964186. The cubic root of 859894 is about 95.0929468900.

The spelling of 859894 in words is "eight hundred fifty-nine thousand, eight hundred ninety-four".