859879 has 8 divisors (see below), whose sum is σ = 900000. Its totient is φ = 820512.

The previous prime is 859861. The next prime is 859891. The reversal of 859879 is 978958.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 859879 - 2⁷ = 859751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859849) 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, 4222 + ... + 4420.

It is an arithmetic number, because the mean of its divisors is an integer number (112500).

2⁸⁵⁹⁸⁷⁹ is an apocalyptic number.

859879 is a deficient number, since it is larger than the sum of its proper divisors (40121).

859879 is a wasteful number, since it uses less digits than its factorization.

859879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377.

The product of its digits is 181440, while the sum is 46.

The square root of 859879 is about 927.2966084269. The cubic root of 859879 is about 95.0923939527.

The spelling of 859879 in words is "eight hundred fifty-nine thousand, eight hundred seventy-nine".