489911 has 2 divisors, whose sum is σ = 489912. Its totient is φ = 489910.

The previous prime is 489901. The next prime is 489913. The reversal of 489911 is 119984.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489911 - 2⁶ = 489847 is a prime.

Together with 489913, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 489911.

It is not a weakly prime, because it can be changed into another prime (489913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244955 + 244956.

It is an arithmetic number, because the mean of its divisors is an integer number (244956).

2⁴⁸⁹⁹¹¹ is an apocalyptic number.

489911 is a deficient number, since it is larger than the sum of its proper divisors (1).

489911 is an equidigital number, since it uses as much as digits as its factorization.

489911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 32.

The square root of 489911 is about 699.9364256845. The cubic root of 489911 is about 78.8325781963.

The spelling of 489911 in words is "four hundred eighty-nine thousand, nine hundred eleven".