459909 has 12 divisors (see below), whose sum is σ = 670956. Its totient is φ = 303552.

The previous prime is 459883. The next prime is 459913. The reversal of 459909 is 909954.

It can be written as a sum of positive squares in 2 ways, for example, as 260100 + 199809 = 510^2 + 447^2 .

It is not a de Polignac number, because 459909 - 2⁹ = 459397 is a prime.

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 (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1047 + ... + 1419.

It is an arithmetic number, because the mean of its divisors is an integer number (55913).

2⁴⁵⁹⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

459909 is a deficient number, since it is larger than the sum of its proper divisors (211047).

459909 is a wasteful number, since it uses less digits than its factorization.

459909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 459909 is about 678.1659089043. The cubic root of 459909 is about 77.1893356008.

The spelling of 459909 in words is "four hundred fifty-nine thousand, nine hundred nine".