808399085 has 8 divisors (see below), whose sum is σ = 1044700440. Its totient is φ = 596971584.

The previous prime is 808399063. The next prime is 808399087. The reversal of 808399085 is 580993808.

808399085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12369289 + 796029796 = 3517^2 + 28214^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 808399085 - 2¹⁰ = 808398061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808399087) 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, 6218390 + ... + 6218519.

It is an arithmetic number, because the mean of its divisors is an integer number (130587555).

Almost surely, 2^808399085 is an apocalyptic number.

It is an amenable number.

808399085 is a deficient number, since it is larger than the sum of its proper divisors (236301355).

808399085 is a wasteful number, since it uses less digits than its factorization.

808399085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12436927.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 808399085 is about 28432.3598211615. The cubic root of 808399085 is about 931.5552214234. Note that the first 3 decimals are identical.

The spelling of 808399085 in words is "eight hundred eight million, three hundred ninety-nine thousand, eighty-five".