859022 has 4 divisors (see below), whose sum is σ = 1288536. Its totient is φ = 429510.

The previous prime is 859003. The next prime is 859031. The reversal of 859022 is 220958.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220958 = 2 ⋅110479.

It is a junction number, because it is equal to n+sod(n) for n = 858982 and 859000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214754 + ... + 214757.

It is an arithmetic number, because the mean of its divisors is an integer number (322134).

2⁸⁵⁹⁰²² is an apocalyptic number.

859022 is a deficient number, since it is larger than the sum of its proper divisors (429514).

859022 is a wasteful number, since it uses less digits than its factorization.

859022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429513.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 859022 is about 926.8343972900. The cubic root of 859022 is about 95.0607921147.

The spelling of 859022 in words is "eight hundred fifty-nine thousand, twenty-two".