489957 has 16 divisors (see below), whose sum is σ = 745920. Its totient is φ = 283392.

The previous prime is 489943. The next prime is 489959. The reversal of 489957 is 759984.

It is not a de Polignac number, because 489957 - 2⁴ = 489941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489959) 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 15 ways as a sum of consecutive naturals, for example, 294 + ... + 1032.

It is an arithmetic number, because the mean of its divisors is an integer number (46620).

2⁴⁸⁹⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

489957 is a deficient number, since it is larger than the sum of its proper divisors (255963).

489957 is a wasteful number, since it uses less digits than its factorization.

489957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772.

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

The square root of 489957 is about 699.9692850404. The cubic root of 489957 is about 78.8350454370.

The spelling of 489957 in words is "four hundred eighty-nine thousand, nine hundred fifty-seven".