809227 has 4 divisors (see below), whose sum is σ = 831136. Its totient is φ = 787320.

The previous prime is 809213. The next prime is 809231. The reversal of 809227 is 722908.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-809227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 809195 and 809204.

It is not an unprimeable number, because it can be changed into a prime (809297) 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, 10899 + ... + 10972.

It is an arithmetic number, because the mean of its divisors is an integer number (207784).

2⁸⁰⁹²²⁷ is an apocalyptic number.

809227 is a deficient number, since it is larger than the sum of its proper divisors (21909).

809227 is a wasteful number, since it uses less digits than its factorization.

809227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21908.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 809227 is about 899.5704530497. The cubic root of 809227 is about 93.1873127689.

The spelling of 809227 in words is "eight hundred nine thousand, two hundred twenty-seven".