489385 has 8 divisors (see below), whose sum is σ = 632520. Its totient is φ = 361344.

The previous prime is 489367. The next prime is 489389. The reversal of 489385 is 583984.

It can be written as a sum of positive squares in 4 ways, for example, as 784 + 488601 = 28^2 + 699^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 489385 - 2⁷ = 489257 is a prime.

489385 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (489389) 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, 3700 + ... + 3829.

It is an arithmetic number, because the mean of its divisors is an integer number (79065).

2⁴⁸⁹³⁸⁵ is an apocalyptic number.

It is an amenable number.

489385 is a deficient number, since it is larger than the sum of its proper divisors (143135).

489385 is a wasteful number, since it uses less digits than its factorization.

489385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7547.

The product of its digits is 34560, while the sum is 37.

The square root of 489385 is about 699.5605763620. The cubic root of 489385 is about 78.8043548488.

The spelling of 489385 in words is "four hundred eighty-nine thousand, three hundred eighty-five".