859542 has 8 divisors (see below), whose sum is σ = 1719096. Its totient is φ = 286512.

The previous prime is 859513. The next prime is 859553. The reversal of 859542 is 245958.

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

859542 is an admirable number.

It is a congruent number.

It is an unprimeable number.

859542 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 3 ways as a sum of consecutive naturals, for example, 71623 + ... + 71634.

It is an arithmetic number, because the mean of its divisors is an integer number (214887).

2⁸⁵⁹⁵⁴² is an apocalyptic number.

859542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

859542 is a wasteful number, since it uses less digits than its factorization.

859542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143262.

The product of its digits is 14400, while the sum is 33.

The square root of 859542 is about 927.1148796131. The cubic root of 859542 is about 95.0799695983.

The spelling of 859542 in words is "eight hundred fifty-nine thousand, five hundred forty-two".