227609 has 2 divisors, whose sum is σ = 227610. Its totient is φ = 227608.

The previous prime is 227603. The next prime is 227611. The reversal of 227609 is 906722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198025 + 29584 = 445^2 + 172^2 .

It is a cyclic number.

It is not a de Polignac number, because 227609 - 2⁴ = 227593 is a prime.

It is a Sophie Germain prime.

Together with 227611, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (227603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113804 + 113805.

It is an arithmetic number, because the mean of its divisors is an integer number (113805).

2²²⁷⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

227609 is a deficient number, since it is larger than the sum of its proper divisors (1).

227609 is an equidigital number, since it uses as much as digits as its factorization.

227609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 227609 is about 477.0838500725. The cubic root of 227609 is about 61.0562054748.

The spelling of 227609 in words is "two hundred twenty-seven thousand, six hundred nine".