208489 has 2 divisors, whose sum is σ = 208490. Its totient is φ = 208488.

The previous prime is 208469. The next prime is 208493. The reversal of 208489 is 984802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166464 + 42025 = 408^2 + 205^2 .

It is a cyclic number.

It is not a de Polignac number, because 208489 - 2⁵ = 208457 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 208489.

It is not a weakly prime, because it can be changed into another prime (208409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104244 + 104245.

It is an arithmetic number, because the mean of its divisors is an integer number (104245).

2²⁰⁸⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

208489 is a deficient number, since it is larger than the sum of its proper divisors (1).

208489 is an equidigital number, since it uses as much as digits as its factorization.

208489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 208489 is about 456.6059570352. The cubic root of 208489 is about 59.2963164582.

The spelling of 208489 in words is "two hundred eight thousand, four hundred eighty-nine".