809093209 has 8 divisors (see below), whose sum is σ = 821000448. Its totient is φ = 797200320.

The previous prime is 809093191. The next prime is 809093239. The reversal of 809093209 is 902390908.

It is a happy number.

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 809093209 - 2¹⁷ = 808962137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (809093239) 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, 171409 + ... + 176065.

It is an arithmetic number, because the mean of its divisors is an integer number (102625056).

Almost surely, 2^809093209 is an apocalyptic number.

It is an amenable number.

809093209 is a deficient number, since it is larger than the sum of its proper divisors (11907239).

809093209 is a wasteful number, since it uses less digits than its factorization.

809093209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7175.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 809093209 is about 28444.5637864250. The cubic root of 809093209 is about 931.8217687541.

The spelling of 809093209 in words is "eight hundred nine million, ninety-three thousand, two hundred nine".