489332321 has 4 divisors (see below), whose sum is σ = 489855492. Its totient is φ = 488809152.

The previous prime is 489332299. The next prime is 489332339. The reversal of 489332321 is 123233984.

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 12390400 + 476941921 = 3520^2 + 21839^2 .

It is a cyclic number.

It is not a de Polignac number, because 489332321 - 2²⁶ = 422223457 is a prime.

It is a super-2 number, since 2×489332321² = 478892240750494082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489332621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260180 + ... + 262053.

It is an arithmetic number, because the mean of its divisors is an integer number (122463873).

Almost surely, 2^489332321 is an apocalyptic number.

It is an amenable number.

489332321 is a deficient number, since it is larger than the sum of its proper divisors (523171).

489332321 is an equidigital number, since it uses as much as digits as its factorization.

489332321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523170.

The product of its digits is 31104, while the sum is 35.

The square root of 489332321 is about 22120.8571488539. The cubic root of 489332321 is about 788.0152716126.

The spelling of 489332321 in words is "four hundred eighty-nine million, three hundred thirty-two thousand, three hundred twenty-one".