459798221 has 4 divisors (see below), whose sum is σ = 479789472. Its totient is φ = 439806972.

The previous prime is 459798217. The next prime is 459798247. The reversal of 459798221 is 122897954.

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 459798221 - 2² = 459798217 is a prime.

It is a super-2 number, since 2×459798221² = 422828808069529682, which contains 22 as substring.

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 (459798821) 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, 9995591 + ... + 9995636.

It is an arithmetic number, because the mean of its divisors is an integer number (119947368).

Almost surely, 2^459798221 is an apocalyptic number.

It is an amenable number.

459798221 is a deficient number, since it is larger than the sum of its proper divisors (19991251).

459798221 is a wasteful number, since it uses less digits than its factorization.

459798221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19991250.

The product of its digits is 362880, while the sum is 47.

The square root of 459798221 is about 21442.9060763694. The cubic root of 459798221 is about 771.8313753115.

The spelling of 459798221 in words is "four hundred fifty-nine million, seven hundred ninety-eight thousand, two hundred twenty-one".