227665 has 4 divisors (see below), whose sum is σ = 273204. Its totient is φ = 182128.

The previous prime is 227663. The next prime is 227671. The reversal of 227665 is 566722.

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

It can be written as a sum of positive squares in 2 ways, for example, as 97344 + 130321 = 312^2 + 361^2 .

It is a cyclic number.

It is not a de Polignac number, because 227665 - 2¹ = 227663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227663) 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, 22762 + ... + 22771.

It is an arithmetic number, because the mean of its divisors is an integer number (68301).

2²²⁷⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

227665 is a deficient number, since it is larger than the sum of its proper divisors (45539).

227665 is an equidigital number, since it uses as much as digits as its factorization.

227665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45538.

The product of its digits is 5040, while the sum is 28.

The square root of 227665 is about 477.1425363558. The cubic root of 227665 is about 61.0612124050.

The spelling of 227665 in words is "two hundred twenty-seven thousand, six hundred sixty-five".