808859 has 4 divisors (see below), whose sum is σ = 816816. Its totient is φ = 800904.

The previous prime is 808853. The next prime is 808867. The reversal of 808859 is 958808.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 808859 - 2⁸ = 808603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (808853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3824 + ... + 4029.

It is an arithmetic number, because the mean of its divisors is an integer number (204204).

2⁸⁰⁸⁸⁵⁹ is an apocalyptic number.

808859 is a deficient number, since it is larger than the sum of its proper divisors (7957).

808859 is a wasteful number, since it uses less digits than its factorization.

808859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7956.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 808859 is about 899.3658877231. The cubic root of 808859 is about 93.1731848292.

The spelling of 808859 in words is "eight hundred eight thousand, eight hundred fifty-nine".