227809 has 8 divisors (see below), whose sum is σ = 240768. Its totient is φ = 215280.

The previous prime is 227797. The next prime is 227827. The reversal of 227809 is 908722.

227809 is nontrivially palindromic in base 15.

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 227809 - 2¹⁷ = 96737 is a prime.

It is a Duffinian number.

227809 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (227849) 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, 1674 + ... + 1804.

It is an arithmetic number, because the mean of its divisors is an integer number (30096).

2²²⁷⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

227809 is a deficient number, since it is larger than the sum of its proper divisors (12959).

227809 is a wasteful number, since it uses less digits than its factorization.

227809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215.

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

The square root of 227809 is about 477.2934108072. The cubic root of 227809 is about 61.0740835994.

The spelling of 227809 in words is "two hundred twenty-seven thousand, eight hundred nine".