885221 has 4 divisors (see below), whose sum is σ = 887244. Its totient is φ = 883200.

The previous prime is 885217. The next prime is 885223. The reversal of 885221 is 122588.

885221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 624100 + 261121 = 790^2 + 511^2 .

It is a cyclic number.

It is not a de Polignac number, because 885221 - 2² = 885217 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (885223) 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, 50 + ... + 1331.

It is an arithmetic number, because the mean of its divisors is an integer number (221811).

2⁸⁸⁵²²¹ is an apocalyptic number.

It is an amenable number.

885221 is a deficient number, since it is larger than the sum of its proper divisors (2023).

885221 is a wasteful number, since it uses less digits than its factorization.

885221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022.

The product of its digits is 1280, while the sum is 26.

The square root of 885221 is about 940.8618389541. The cubic root of 885221 is about 96.0175387516.

The spelling of 885221 in words is "eight hundred eighty-five thousand, two hundred twenty-one".