489827089 has 4 divisors (see below), whose sum is σ = 494161956. Its totient is φ = 485492224.

The previous prime is 489827047. The next prime is 489827111. The reversal of 489827089 is 980728984.

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

It can be written as a sum of positive squares in 2 ways, for example, as 106254864 + 383572225 = 10308^2 + 19585^2 .

It is a cyclic number.

It is not a de Polignac number, because 489827089 - 2¹¹ = 489825041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489827029) 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 in 3 ways as a sum of consecutive naturals, for example, 2167264 + ... + 2167489.

It is an arithmetic number, because the mean of its divisors is an integer number (123540489).

Almost surely, 2^489827089 is an apocalyptic number.

It is an amenable number.

489827089 is a deficient number, since it is larger than the sum of its proper divisors (4334867).

489827089 is a wasteful number, since it uses less digits than its factorization.

489827089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334866.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The square root of 489827089 is about 22132.0376151858. The cubic root of 489827089 is about 788.2807717589.

The spelling of 489827089 in words is "four hundred eighty-nine million, eight hundred twenty-seven thousand, eighty-nine".