209204 has 6 divisors (see below), whose sum is σ = 366114. Its totient is φ = 104600.

The previous prime is 209203. The next prime is 209213. The reversal of 209204 is 402902.

It can be written as a sum of positive squares in only one way, i.e., 204304 + 4900 = 452^2 + 70^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 209204.

It is not an unprimeable number, because it can be changed into a prime (209201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26147 + ... + 26154.

It is an arithmetic number, because the mean of its divisors is an integer number (61019).

2²⁰⁹²⁰⁴ is an apocalyptic number.

It is an amenable number.

209204 is a deficient number, since it is larger than the sum of its proper divisors (156910).

209204 is a wasteful number, since it uses less digits than its factorization.

209204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52305 (or 52303 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 209204 is about 457.3882377150. The cubic root of 209204 is about 59.3640234557.

The spelling of 209204 in words is "two hundred nine thousand, two hundred four".