983209 has 2 divisors, whose sum is σ = 983210. Its totient is φ = 983208.

The previous prime is 983197. The next prime is 983233. The reversal of 983209 is 902389.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 931225 + 51984 = 965^2 + 228^2 .

It is an emirp because it is prime and its reverse (902389) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 983209 - 2⁹ = 982697 is a prime.

It is a Chen prime.

It is a plaindrome in base 7.

It is not a weakly prime, because it can be changed into another prime (983239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491604 + 491605.

It is an arithmetic number, because the mean of its divisors is an integer number (491605).

2⁹⁸³²⁰⁹ is an apocalyptic number.

It is an amenable number.

983209 is a deficient number, since it is larger than the sum of its proper divisors (1).

983209 is an equidigital number, since it uses as much as digits as its factorization.

983209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 983209 is about 991.5689587719. The cubic root of 983209 is about 99.4371378056.

The spelling of 983209 in words is "nine hundred eighty-three thousand, two hundred nine".