808809 has 8 divisors (see below), whose sum is σ = 1141920. Its totient is φ = 507456.

The previous prime is 808793. The next prime is 808837. The reversal of 808809 is 908808.

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

It is not a de Polignac number, because 808809 - 2⁴ = 808793 is a prime.

It is a Curzon number.

808809 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 808809.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 808809.

It is not an unprimeable number, because it can be changed into a prime (808309) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7879 + ... + 7980.

It is an arithmetic number, because the mean of its divisors is an integer number (142740).

2⁸⁰⁸⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

808809 is a deficient number, since it is larger than the sum of its proper divisors (333111).

808809 is a wasteful number, since it uses less digits than its factorization.

808809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15879.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 808809 is about 899.3380899306. The cubic root of 808809 is about 93.1712649415.

Subtracting 808809 from its reverse (908808), we obtain a palindrome (99999).

The spelling of 808809 in words is "eight hundred eight thousand, eight hundred nine".