804859 has 8 divisors (see below), whose sum is σ = 924480. Its totient is φ = 693000.

The previous prime is 804857. The next prime is 804877. The reversal of 804859 is 958408.

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

It is not a de Polignac number, because 804859 - 2¹ = 804857 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (804857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1717 + ... + 2134.

It is an arithmetic number, because the mean of its divisors is an integer number (115560).

2⁸⁰⁴⁸⁵⁹ is an apocalyptic number.

804859 is a deficient number, since it is larger than the sum of its proper divisors (119621).

804859 is a wasteful number, since it uses less digits than its factorization.

804859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3881.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 804859 is about 897.1393425773. The cubic root of 804859 is about 93.0193431072.

The spelling of 804859 in words is "eight hundred four thousand, eight hundred fifty-nine".