489969 has 20 divisors (see below), whose sum is σ = 766656. Its totient is φ = 311256.

The previous prime is 489961. The next prime is 489977. The reversal of 489969 is 969984.

489969 is nontrivially palindromic in base 8.

It is an interprime number because it is at equal distance from previous prime (489961) and next prime (489977).

It is not a de Polignac number, because 489969 - 2³ = 489961 is a prime.

It is a super-2 number, since 2×489969² = 480139241922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (489961) 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 19 ways as a sum of consecutive naturals, for example, 1732 + ... + 1994.

2⁴⁸⁹⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

489969 is a deficient number, since it is larger than the sum of its proper divisors (276687).

489969 is a wasteful number, since it uses less digits than its factorization.

489969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 289 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 489969 is about 699.9778567926. The cubic root of 489969 is about 78.8356890396.

The spelling of 489969 in words is "four hundred eighty-nine thousand, nine hundred sixty-nine".