859001 has 8 divisors (see below), whose sum is σ = 1009344. Its totient is φ = 720720.

The previous prime is 858997. The next prime is 859003. The reversal of 859001 is 100958.

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

It is not a de Polignac number, because 859001 - 2² = 858997 is a prime.

It is a Duffinian number.

It is a congruent 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, 2861 + ... + 3146.

It is an arithmetic number, because the mean of its divisors is an integer number (126168).

2⁸⁵⁹⁰⁰¹ is an apocalyptic number.

It is an amenable number.

859001 is a deficient number, since it is larger than the sum of its proper divisors (150343).

859001 is a wasteful number, since it uses less digits than its factorization.

859001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6031.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 859001 is about 926.8230683361. The cubic root of 859001 is about 95.0600174769.

Adding to 859001 its reverse (100958), we get a palindrome (959959).

The spelling of 859001 in words is "eight hundred fifty-nine thousand, one".