489825889 has 4 divisors (see below), whose sum is σ = 559801024. Its totient is φ = 419850756.

The previous prime is 489825887. The next prime is 489825901. The reversal of 489825889 is 988528984.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 489825889 - 2¹ = 489825887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489825887) 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, 34987557 + ... + 34987570.

It is an arithmetic number, because the mean of its divisors is an integer number (139950256).

Almost surely, 2^489825889 is an apocalyptic number.

It is an amenable number.

489825889 is a deficient number, since it is larger than the sum of its proper divisors (69975135).

489825889 is an equidigital number, since it uses as much as digits as its factorization.

489825889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69975134.

The product of its digits is 13271040, while the sum is 61.

The square root of 489825889 is about 22132.0105051484. The cubic root of 489825889 is about 788.2801280367.

The spelling of 489825889 in words is "four hundred eighty-nine million, eight hundred twenty-five thousand, eight hundred eighty-nine".