226609 has 2 divisors, whose sum is σ = 226610. Its totient is φ = 226608.

The previous prime is 226601. The next prime is 226621. The reversal of 226609 is 906622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119025 + 107584 = 345^2 + 328^2 .

It is a cyclic number.

It is not a de Polignac number, because 226609 - 2³ = 226601 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113304 + 113305.

It is an arithmetic number, because the mean of its divisors is an integer number (113305).

2²²⁶⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

226609 is a deficient number, since it is larger than the sum of its proper divisors (1).

226609 is an equidigital number, since it uses as much as digits as its factorization.

226609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 226609 is about 476.0346626035. The cubic root of 226609 is about 60.9666574031.

The spelling of 226609 in words is "two hundred twenty-six thousand, six hundred nine".