489427129 has 3 divisors (see below), whose sum is σ = 489449253. Its totient is φ = 489405006.

The previous prime is 489427123. The next prime is 489427181. The reversal of 489427129 is 921724984.

The square root of 489427129 is 22123.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 489427129 - 2¹⁵ = 489394361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489427123) 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 2 ways as a sum of consecutive naturals, for example, 11062 + ... + 33184.

It is an arithmetic number, because the mean of its divisors is an integer number (163149751).

Almost surely, 2^489427129 is an apocalyptic number.

489427129 is the 22123-rd square number.

489427129 is the 11062-nd centered octagonal number.

It is an amenable number.

489427129 is a deficient number, since it is larger than the sum of its proper divisors (22124).

489427129 is an frugal number, since it uses more digits than its factorization.

489427129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44246 (or 22123 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The cubic root of 489427129 is about 788.0661609055.

It can be divided in two parts, 4894 and 27129, that added together give a palindrome (32023).

The spelling of 489427129 in words is "four hundred eighty-nine million, four hundred twenty-seven thousand, one hundred twenty-nine".