459989 has 4 divisors (see below), whose sum is σ = 469824. Its totient is φ = 450156.

The previous prime is 459961. The next prime is 460013. The reversal of 459989 is 989954.

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 459989 - 2¹⁶ = 394453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (459929) 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, 4847 + ... + 4940.

It is an arithmetic number, because the mean of its divisors is an integer number (117456).

2⁴⁵⁹⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

459989 is a deficient number, since it is larger than the sum of its proper divisors (9835).

459989 is an equidigital number, since it uses as much as digits as its factorization.

459989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9834.

The product of its digits is 116640, while the sum is 44.

The square root of 459989 is about 678.2248889565. The cubic root of 459989 is about 77.1938109708.

The spelling of 459989 in words is "four hundred fifty-nine thousand, nine hundred eighty-nine".