489569 has 4 divisors (see below), whose sum is σ = 496944. Its totient is φ = 482196.

The previous prime is 489557. The next prime is 489571. The reversal of 489569 is 965984.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 489569 - 2⁴ = 489553 is a prime.

It is a super-2 number, since 2×489569² = 479355611522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3587 + ... + 3720.

It is an arithmetic number, because the mean of its divisors is an integer number (124236).

2⁴⁸⁹⁵⁶⁹ is an apocalyptic number.

It is an amenable number.

489569 is a deficient number, since it is larger than the sum of its proper divisors (7375).

489569 is an equidigital number, since it uses as much as digits as its factorization.

489569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7374.

The product of its digits is 77760, while the sum is 41.

The square root of 489569 is about 699.6920751302. The cubic root of 489569 is about 78.8142299535.

The spelling of 489569 in words is "four hundred eighty-nine thousand, five hundred sixty-nine".