459997 has 4 divisors (see below), whose sum is σ = 461916. Its totient is φ = 458080.

The previous prime is 459961. The next prime is 460013. The reversal of 459997 is 799954.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 133956 + 326041 = 366^2 + 571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-459997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (459937) 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, 538 + ... + 1099.

It is an arithmetic number, because the mean of its divisors is an integer number (115479).

2⁴⁵⁹⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

459997 is a deficient number, since it is larger than the sum of its proper divisors (1919).

459997 is a wasteful number, since it uses less digits than its factorization.

459997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918.

The product of its digits is 102060, while the sum is 43.

The square root of 459997 is about 678.2307866796. The cubic root of 459997 is about 77.1942584793.

Subtracting from 459997 its sum of digits (43), we obtain a palindrome (459954).

The spelling of 459997 in words is "four hundred fifty-nine thousand, nine hundred ninety-seven".