489321249 has 4 divisors (see below), whose sum is σ = 652428336. Its totient is φ = 326214164.

The previous prime is 489321233. The next prime is 489321289. The reversal of 489321249 is 942123984.

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 489321249 - 2⁴ = 489321233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 489321249.

It is not an unprimeable number, because it can be changed into a prime (489321229) 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, 81553539 + ... + 81553544.

It is an arithmetic number, because the mean of its divisors is an integer number (163107084).

Almost surely, 2^489321249 is an apocalyptic number.

It is an amenable number.

489321249 is a deficient number, since it is larger than the sum of its proper divisors (163107087).

489321249 is a wasteful number, since it uses less digits than its factorization.

489321249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163107086.

The product of its digits is 124416, while the sum is 42.

The square root of 489321249 is about 22120.6068858881. The cubic root of 489321249 is about 788.0093281596.

The spelling of 489321249 in words is "four hundred eighty-nine million, three hundred twenty-one thousand, two hundred forty-nine".