227765 has 4 divisors (see below), whose sum is σ = 273324. Its totient is φ = 182208.

The previous prime is 227743. The next prime is 227789. The reversal of 227765 is 567722.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 567722 = 2 ⋅283861.

It can be written as a sum of positive squares in 2 ways, for example, as 131044 + 96721 = 362^2 + 311^2 .

It is a cyclic number.

It is not a de Polignac number, because 227765 - 2¹⁰ = 226741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22772 + ... + 22781.

It is an arithmetic number, because the mean of its divisors is an integer number (68331).

2²²⁷⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

227765 is a deficient number, since it is larger than the sum of its proper divisors (45559).

227765 is an equidigital number, since it uses as much as digits as its factorization.

227765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45558.

The product of its digits is 5880, while the sum is 29.

The square root of 227765 is about 477.2473153408. The cubic root of 227765 is about 61.0701513100.

The spelling of 227765 in words is "two hundred twenty-seven thousand, seven hundred sixty-five".