459999 has 14 divisors (see below), whose sum is σ = 690776. Its totient is φ = 306180.

The previous prime is 459961. The next prime is 460013. The reversal of 459999 is 999954.

It is a happy number.

459999 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-459999 is a prime.

It is a Duffinian number.

459999 is a modest number, since divided by 999 gives 459 as remainder.

459999 is strictly pandigital in base 7.

It is a plaindrome in base 10.

It is a nialpdrome in base 9.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 414 + ... + 1044.

2⁴⁵⁹⁹⁹⁹ is an apocalyptic number.

459999 is a deficient number, since it is larger than the sum of its proper divisors (230777).

459999 is an frugal number, since it uses more digits than its factorization.

459999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 634 counting only the distinct ones).

The product of its digits is 131220, while the sum is 45.

The square root of 459999 is about 678.2322611023. The cubic root of 459999 is about 77.1943703556.

Subtracting from 459999 its sum of digits (45), we obtain a palindrome (459954).

The spelling of 459999 in words is "four hundred fifty-nine thousand, nine hundred ninety-nine".