489482209 has 2 divisors, whose sum is σ = 489482210. Its totient is φ = 489482208.

The previous prime is 489482179. The next prime is 489482243. The reversal of 489482209 is 902284984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 426629025 + 62853184 = 20655^2 + 7928^2 .

It is a cyclic number.

It is not a de Polignac number, because 489482209 - 2¹¹ = 489480161 is a prime.

It is not a weakly prime, because it can be changed into another prime (489480209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244741104 + 244741105.

It is an arithmetic number, because the mean of its divisors is an integer number (244741105).

Almost surely, 2^489482209 is an apocalyptic number.

It is an amenable number.

489482209 is a deficient number, since it is larger than the sum of its proper divisors (1).

489482209 is an equidigital number, since it uses as much as digits as its factorization.

489482209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 489482209 is about 22124.2448232702. The cubic root of 489482209 is about 788.0957227158.

The spelling of 489482209 in words is "four hundred eighty-nine million, four hundred eighty-two thousand, two hundred nine".