489320959 has 4 divisors (see below), whose sum is σ = 489489616. Its totient is φ = 489152304.

The previous prime is 489320933. The next prime is 489320977. The reversal of 489320959 is 959023984.

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

It is a cyclic number.

It is not a de Polignac number, because 489320959 - 2⁷ = 489320831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489320999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79899 + ... + 85804.

It is an arithmetic number, because the mean of its divisors is an integer number (122372404).

Almost surely, 2^489320959 is an apocalyptic number.

489320959 is a deficient number, since it is larger than the sum of its proper divisors (168657).

489320959 is a wasteful number, since it uses less digits than its factorization.

489320959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168656.

The product of its (nonzero) digits is 699840, while the sum is 49.

The square root of 489320959 is about 22120.6003309133. The cubic root of 489320959 is about 788.0091724864.

It can be divided in two parts, 4893 and 20959, that added together give a palindrome (25852).

The spelling of 489320959 in words is "four hundred eighty-nine million, three hundred twenty thousand, nine hundred fifty-nine".