489564 has 30 divisors (see below), whose sum is σ = 1280664. Its totient is φ = 163080.

The previous prime is 489557. The next prime is 489571. The reversal of 489564 is 465984.

489564 is nontrivially palindromic in base 14.

It is an interprime number because it is at equal distance from previous prime (489557) and next prime (489571).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable 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 9 ways as a sum of consecutive naturals, for example, 432 + ... + 1079.

2⁴⁸⁹⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

489564 is an abundant number, since it is smaller than the sum of its proper divisors (791100).

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

489564 is a wasteful number, since it uses less digits than its factorization.

489564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527 (or 1516 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 489564 is about 699.6885021208. The cubic root of 489564 is about 78.8139616410.

The spelling of 489564 in words is "four hundred eighty-nine thousand, five hundred sixty-four".