859422 has 16 divisors (see below), whose sum is σ = 1729152. Its totient is φ = 284760.

The previous prime is 859393. The next prime is 859423. The reversal of 859422 is 224958.

It is a self number, because there is not a number n which added to its sum of digits gives 859422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859423) by changing a digit.

859422 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 in 7 ways as a sum of consecutive naturals, for example, 1047 + ... + 1677.

It is an arithmetic number, because the mean of its divisors is an integer number (108072).

2⁸⁵⁹⁴²² is an apocalyptic number.

859422 is an abundant number, since it is smaller than the sum of its proper divisors (869730).

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

859422 is a wasteful number, since it uses less digits than its factorization.

859422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863.

The product of its digits is 5760, while the sum is 30.

The square root of 859422 is about 927.0501604552. The cubic root of 859422 is about 95.0755447118.

The spelling of 859422 in words is "eight hundred fifty-nine thousand, four hundred twenty-two".