489798 has 12 divisors (see below), whose sum is σ = 1061268. Its totient is φ = 163260.

The previous prime is 489793. The next prime is 489799. The reversal of 489798 is 897984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489791) by changing a digit.

489798 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13588 + ... + 13623.

It is an arithmetic number, because the mean of its divisors is an integer number (88439).

2⁴⁸⁹⁷⁹⁸ is an apocalyptic number.

489798 is an abundant number, since it is smaller than the sum of its proper divisors (571470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489798 is a wasteful number, since it uses less digits than its factorization.

489798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27219 (or 27216 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 489798 is about 699.8556994124. The cubic root of 489798 is about 78.8265167100.

The spelling of 489798 in words is "four hundred eighty-nine thousand, seven hundred ninety-eight".