809824085 has 8 divisors (see below), whose sum is σ = 1110615936. Its totient is φ = 555307920.

The previous prime is 809824073. The next prime is 809824091. The reversal of 809824085 is 580428908.

809824085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 809824085 - 2²⁰ = 808775509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11568881 + ... + 11568950.

It is an arithmetic number, because the mean of its divisors is an integer number (138826992).

Almost surely, 2^809824085 is an apocalyptic number.

It is an amenable number.

809824085 is a deficient number, since it is larger than the sum of its proper divisors (300791851).

809824085 is a wasteful number, since it uses less digits than its factorization.

809824085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23137843.

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 809824085 is about 28457.4082621731. The cubic root of 809824085 is about 932.1022643316.

The spelling of 809824085 in words is "eight hundred nine million, eight hundred twenty-four thousand, eighty-five".