209223 has 28 divisors (see below), whose sum is σ = 367248. Its totient is φ = 116640.

The previous prime is 209221. The next prime is 209227. The reversal of 209223 is 322902.

209223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 209223 - 2¹ = 209221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 209196 and 209205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209221) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 5083 + ... + 5123.

It is an arithmetic number, because the mean of its divisors is an integer number (13116).

2²⁰⁹²²³ is an apocalyptic number.

209223 is a deficient number, since it is larger than the sum of its proper divisors (158025).

209223 is an frugal number, since it uses more digits than its factorization.

209223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 209223 is about 457.4090073446. The cubic root of 209223 is about 59.3658205569.

The spelling of 209223 in words is "two hundred nine thousand, two hundred twenty-three".