884421 has 6 divisors (see below), whose sum is σ = 1277510. Its totient is φ = 589608.

The previous prime is 884417. The next prime is 884423. The reversal of 884421 is 124488.

It can be written as a sum of positive squares in only one way, i.e., 476100 + 408321 = 690^2 + 639^2 .

It is not a de Polignac number, because 884421 - 2² = 884417 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

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 (884423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49126 + ... + 49143.

2⁸⁸⁴⁴²¹ is an apocalyptic number.

It is an amenable number.

884421 is a deficient number, since it is larger than the sum of its proper divisors (393089).

884421 is a wasteful number, since it uses less digits than its factorization.

884421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98275 (or 98272 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 884421 is about 940.4366007339. The cubic root of 884421 is about 95.9886054184.

The spelling of 884421 in words is "eight hundred eighty-four thousand, four hundred twenty-one".