489939 has 8 divisors (see below), whose sum is σ = 657360. Its totient is φ = 324576.

The previous prime is 489913. The next prime is 489941. The reversal of 489939 is 939984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 489939 - 2⁹ = 489427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 489939.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489959) 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 7 ways as a sum of consecutive naturals, for example, 177 + ... + 1005.

It is an arithmetic number, because the mean of its divisors is an integer number (82170).

2⁴⁸⁹⁹³⁹ is an apocalyptic number.

489939 is a deficient number, since it is larger than the sum of its proper divisors (167421).

489939 is a wasteful number, since it uses less digits than its factorization.

489939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029.

The product of its digits is 69984, while the sum is 42.

The square root of 489939 is about 699.9564272153. The cubic root of 489939 is about 78.8340800133.

The spelling of 489939 in words is "four hundred eighty-nine thousand, nine hundred thirty-nine".