489879 has 24 divisors (see below), whose sum is σ = 786240. Its totient is φ = 292032.

The previous prime is 489871. The next prime is 489887. The reversal of 489879 is 978984.

It is an interprime number because it is at equal distance from previous prime (489871) and next prime (489887).

It is not a de Polignac number, because 489879 - 2³ = 489871 is a prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489871) 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 23 ways as a sum of consecutive naturals, for example, 6162 + ... + 6240.

It is an arithmetic number, because the mean of its divisors is an integer number (32760).

2⁴⁸⁹⁸⁷⁹ is an apocalyptic number.

489879 is a deficient number, since it is larger than the sum of its proper divisors (296361).

489879 is a wasteful number, since it uses less digits than its factorization.

489879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 148 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 489879 is about 699.9135660923. The cubic root of 489879 is about 78.8308617638.

The spelling of 489879 in words is "four hundred eighty-nine thousand, eight hundred seventy-nine".