884521 has 8 divisors (see below), whose sum is σ = 972288. Its totient is φ = 798000.

The previous prime is 884501. The next prime is 884537. The reversal of 884521 is 125488.

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 884521 - 2⁵ = 884489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 884521.

It is not an unprimeable number, because it can be changed into a prime (884501) 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 7 ways as a sum of consecutive naturals, for example, 1891 + ... + 2311.

It is an arithmetic number, because the mean of its divisors is an integer number (121536).

2⁸⁸⁴⁵²¹ is an apocalyptic number.

It is an amenable number.

884521 is a deficient number, since it is larger than the sum of its proper divisors (87767).

884521 is a wasteful number, since it uses less digits than its factorization.

884521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623.

The product of its digits is 2560, while the sum is 28.

The square root of 884521 is about 940.4897660262. The cubic root of 884521 is about 95.9922230390.

It can be divided in two parts, 8845 and 21, that multiplied together give a triangular number (185745 = T₆₀₉).

The spelling of 884521 in words is "eight hundred eighty-four thousand, five hundred twenty-one".