859239 has 6 divisors (see below), whose sum is σ = 1241136. Its totient is φ = 572820.

The previous prime is 859223. The next prime is 859249. The reversal of 859239 is 932958.

It is not a de Polignac number, because 859239 - 2⁴ = 859223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859249) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 47727 + ... + 47744.

It is an arithmetic number, because the mean of its divisors is an integer number (206856).

2⁸⁵⁹²³⁹ is an apocalyptic number.

859239 is a deficient number, since it is larger than the sum of its proper divisors (381897).

859239 is a wasteful number, since it uses less digits than its factorization.

859239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95477 (or 95474 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 859239 is about 926.9514550396. The cubic root of 859239 is about 95.0687959668.

The spelling of 859239 in words is "eight hundred fifty-nine thousand, two hundred thirty-nine".