489913 has 2 divisors, whose sum is σ = 489914. Its totient is φ = 489912.

The previous prime is 489911. The next prime is 489941. The reversal of 489913 is 319984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 426409 + 63504 = 653^2 + 252^2 .

It is a cyclic number.

It is not a de Polignac number, because 489913 - 2¹ = 489911 is a prime.

Together with 489911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (489911) 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, 244956 + 244957.

It is an arithmetic number, because the mean of its divisors is an integer number (244957).

2⁴⁸⁹⁹¹³ is an apocalyptic number.

It is an amenable number.

489913 is a deficient number, since it is larger than the sum of its proper divisors (1).

489913 is an equidigital number, since it uses as much as digits as its factorization.

489913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 34.

The square root of 489913 is about 699.9378543842. The cubic root of 489913 is about 78.8326854708.

The spelling of 489913 in words is "four hundred eighty-nine thousand, nine hundred thirteen".