489239 has 2 divisors, whose sum is σ = 489240. Its totient is φ = 489238.

The previous prime is 489217. The next prime is 489241. The reversal of 489239 is 932984.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489239 is a prime.

It is a Sophie Germain prime.

Together with 489241, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 489199 and 489208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244619 + 244620.

It is an arithmetic number, because the mean of its divisors is an integer number (244620).

2⁴⁸⁹²³⁹ is an apocalyptic number.

489239 is a deficient number, since it is larger than the sum of its proper divisors (1).

489239 is an equidigital number, since it uses as much as digits as its factorization.

489239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 489239 is about 699.4562173575. The cubic root of 489239 is about 78.7965174064.

The spelling of 489239 in words is "four hundred eighty-nine thousand, two hundred thirty-nine".