209359 has 2 divisors, whose sum is σ = 209360. Its totient is φ = 209358.

The previous prime is 209357. The next prime is 209371. The reversal of 209359 is 953902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 209359 - 2¹ = 209357 is a prime.

Together with 209357, it forms a pair of twin primes.

209359 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (209353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104679 + 104680.

It is an arithmetic number, because the mean of its divisors is an integer number (104680).

2²⁰⁹³⁵⁹ is an apocalyptic number.

209359 is a deficient number, since it is larger than the sum of its proper divisors (1).

209359 is an equidigital number, since it uses as much as digits as its factorization.

209359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 209359 is about 457.5576466414. The cubic root of 209359 is about 59.3786808429.

The spelling of 209359 in words is "two hundred nine thousand, three hundred fifty-nine".