489717 has 6 divisors (see below), whose sum is σ = 707382. Its totient is φ = 326472.

The previous prime is 489691. The next prime is 489733. The reversal of 489717 is 717984.

It can be written as a sum of positive squares in only one way, i.e., 427716 + 62001 = 654^2 + 249^2 .

It is not a de Polignac number, because 489717 - 2⁶ = 489653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489217) 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 5 ways as a sum of consecutive naturals, for example, 27198 + ... + 27215.

It is an arithmetic number, because the mean of its divisors is an integer number (117897).

2⁴⁸⁹⁷¹⁷ is an apocalyptic number.

It is an amenable number.

489717 is a deficient number, since it is larger than the sum of its proper divisors (217665).

489717 is a wasteful number, since it uses less digits than its factorization.

489717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54419 (or 54416 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 489717 is about 699.7978279475. The cubic root of 489717 is about 78.8221711772.

The spelling of 489717 in words is "four hundred eighty-nine thousand, seven hundred seventeen".