886221 has 24 divisors (see below), whose sum is σ = 1520064. Its totient is φ = 505440.

The previous prime is 886199. The next prime is 886241. The reversal of 886221 is 122688.

It is not a de Polignac number, because 886221 - 2⁵ = 886189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

886221 is a lucky 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 (886241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1441 + ... + 1961.

It is an arithmetic number, because the mean of its divisors is an integer number (63336).

2⁸⁸⁶²²¹ is an apocalyptic number.

886221 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

886221 is a deficient number, since it is larger than the sum of its proper divisors (633843).

886221 is an equidigital number, since it uses as much as digits as its factorization.

886221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 531 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 886221 is about 941.3931166096. The cubic root of 886221 is about 96.0536809148.

886221 divided by its sum of digits (27) gives a palindrome (32823).

The spelling of 886221 in words is "eight hundred eighty-six thousand, two hundred twenty-one".