859830 has 16 divisors (see below), whose sum is σ = 2063664. Its totient is φ = 229280.

The previous prime is 859823. The next prime is 859841. The reversal of 859830 is 38958.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 859791 and 859800.

It is a congruent number.

It is an unprimeable number.

859830 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 7 ways as a sum of consecutive naturals, for example, 14301 + ... + 14360.

It is an arithmetic number, because the mean of its divisors is an integer number (128979).

2⁸⁵⁹⁸³⁰ is an apocalyptic number.

859830 is an abundant number, since it is smaller than the sum of its proper divisors (1203834).

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

859830 is a wasteful number, since it uses less digits than its factorization.

859830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28671.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 859830 is about 927.2701871623. The cubic root of 859830 is about 95.0905876459.

The spelling of 859830 in words is "eight hundred fifty-nine thousand, eight hundred thirty".