489501 has 12 divisors (see below), whose sum is σ = 714012. Its totient is φ = 323136.

The previous prime is 489493. The next prime is 489529. The reversal of 489501 is 105984.

It can be written as a sum of positive squares in 2 ways, for example, as 308025 + 181476 = 555^2 + 426^2 .

It is not a de Polignac number, because 489501 - 2³ = 489493 is a prime.

It is a super-2 number, since 2×489501² = 479222458002, which contains 22 as substring.

489501 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489551) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1035 + ... + 1431.

It is an arithmetic number, because the mean of its divisors is an integer number (59501).

2⁴⁸⁹⁵⁰¹ is an apocalyptic number.

It is an amenable number.

489501 is a deficient number, since it is larger than the sum of its proper divisors (224511).

489501 is a wasteful number, since it uses less digits than its factorization.

489501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 489501 is about 699.6434806385. The cubic root of 489501 is about 78.8105807466.

It can be divided in two parts, 489 and 501, that added together give a triangular number (990 = T₄₄).

The spelling of 489501 in words is "four hundred eighty-nine thousand, five hundred one".