489975 has 24 divisors (see below), whose sum is σ = 833280. Its totient is φ = 253920.

The previous prime is 489961. The next prime is 489977. The reversal of 489975 is 579984.

It is not a de Polignac number, because 489975 - 2⁴ = 489959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3456 + ... + 3594.

It is an arithmetic number, because the mean of its divisors is an integer number (34720).

2⁴⁸⁹⁹⁷⁵ is an apocalyptic number.

489975 is a deficient number, since it is larger than the sum of its proper divisors (343305).

489975 is a wasteful number, since it uses less digits than its factorization.

489975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 194 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 489975 is about 699.9821426294. The cubic root of 489975 is about 78.8360108370.

Subtracting 489975 from its reverse (579984), we obtain a palindrome (90009).

The spelling of 489975 in words is "four hundred eighty-nine thousand, nine hundred seventy-five".