489805211 has 4 divisors (see below), whose sum is σ = 559777392. Its totient is φ = 419833032.

The previous prime is 489805111. The next prime is 489805219. The reversal of 489805211 is 112508984.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489805211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489805219) 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 in 3 ways as a sum of consecutive naturals, for example, 34986080 + ... + 34986093.

It is an arithmetic number, because the mean of its divisors is an integer number (139944348).

Almost surely, 2^489805211 is an apocalyptic number.

489805211 is a deficient number, since it is larger than the sum of its proper divisors (69972181).

489805211 is an equidigital number, since it uses as much as digits as its factorization.

489805211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69972180.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 489805211 is about 22131.5433488042. The cubic root of 489805211 is about 788.2690354654.

The spelling of 489805211 in words is "four hundred eighty-nine million, eight hundred five thousand, two hundred eleven".