884821 has 8 divisors (see below), whose sum is σ = 1036224. Its totient is φ = 739680.

The previous prime is 884813. The next prime is 884827. The reversal of 884821 is 128488.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 884821 - 2³ = 884813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (884827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1255 + ... + 1828.

It is an arithmetic number, because the mean of its divisors is an integer number (129528).

2⁸⁸⁴⁸²¹ is an apocalyptic number.

It is an amenable number.

884821 is a deficient number, since it is larger than the sum of its proper divisors (151403).

884821 is a wasteful number, since it uses less digits than its factorization.

884821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131.

The product of its digits is 4096, while the sum is 31.

The square root of 884821 is about 940.6492438736. The cubic root of 884821 is about 96.0030742650.

The spelling of 884821 in words is "eight hundred eighty-four thousand, eight hundred twenty-one".