200609 has 2 divisors, whose sum is σ = 200610. Its totient is φ = 200608.

The previous prime is 200597. The next prime is 200639. The reversal of 200609 is 906002.

200609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107584 + 93025 = 328^2 + 305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200609 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (200639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100304 + 100305.

It is an arithmetic number, because the mean of its divisors is an integer number (100305).

2²⁰⁰⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

200609 is a deficient number, since it is larger than the sum of its proper divisors (1).

200609 is an equidigital number, since it uses as much as digits as its factorization.

200609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 200609 is about 447.8939606648. The cubic root of 200609 is about 58.5396521781.

The spelling of 200609 in words is "two hundred thousand, six hundred nine".