10584221 has 4 divisors (see below), whose sum is σ = 10590972. Its totient is φ = 10577472.

The previous prime is 10584193. The next prime is 10584229. The reversal of 10584221 is 12248501.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4056196 + 6528025 = 2014^2 + 2555^2 .

It is a cyclic number.

It is not a de Polignac number, because 10584221 - 2⁶ = 10584157 is a prime.

It is a super-2 number, since 2×10584221² = 224051468353682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10584229) 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, 341 + ... + 4613.

It is an arithmetic number, because the mean of its divisors is an integer number (2647743).

Almost surely, 2^10584221 is an apocalyptic number.

It is an amenable number.

10584221 is a deficient number, since it is larger than the sum of its proper divisors (6751).

10584221 is an equidigital number, since it uses as much as digits as its factorization.

10584221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6750.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 10584221 is about 3253.3399760861. The cubic root of 10584221 is about 219.5598707588.

The spelling of 10584221 in words is "ten million, five hundred eighty-four thousand, two hundred twenty-one".