859009 has 8 divisors (see below), whose sum is σ = 936000. Its totient is φ = 785232.

The previous prime is 859003. The next prime is 859031. The reversal of 859009 is 900958.

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

It is not a de Polignac number, because 859009 - 2⁹ = 858497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (859003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229 + ... + 1330.

It is an arithmetic number, because the mean of its divisors is an integer number (117000).

2⁸⁵⁹⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

859009 is a deficient number, since it is larger than the sum of its proper divisors (76991).

859009 is a wasteful number, since it uses less digits than its factorization.

859009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 859009 is about 926.8273841444. The cubic root of 859009 is about 95.0603125785.

The spelling of 859009 in words is "eight hundred fifty-nine thousand, nine".