882021 has 16 divisors (see below), whose sum is σ = 1361024. Its totient is φ = 497664.

The previous prime is 882019. The next prime is 882029. The reversal of 882021 is 120288.

It is not a de Polignac number, because 882021 - 2¹ = 882019 is a prime.

It is a super-2 number, since 2×882021² = 1555922088882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (882029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1821 + ... + 2253.

It is an arithmetic number, because the mean of its divisors is an integer number (85064).

2⁸⁸²⁰²¹ is an apocalyptic number.

It is an amenable number.

882021 is a deficient number, since it is larger than the sum of its proper divisors (479003).

882021 is a wasteful number, since it uses less digits than its factorization.

882021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 882021 is about 939.1597308233. The cubic root of 882021 is about 95.9017005957.

The spelling of 882021 in words is "eight hundred eighty-two thousand, twenty-one".