889021 has 8 divisors (see below), whose sum is σ = 1028160. Its totient is φ = 752928.

The previous prime is 889001. The next prime is 889027. The reversal of 889021 is 120988.

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 889021 - 2⁵ = 888989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889027) 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 7 ways as a sum of consecutive naturals, for example, 91 + ... + 1336.

It is an arithmetic number, because the mean of its divisors is an integer number (128520).

2⁸⁸⁹⁰²¹ is an apocalyptic number.

It is an amenable number.

889021 is a deficient number, since it is larger than the sum of its proper divisors (139139).

889021 is a wasteful number, since it uses less digits than its factorization.

889021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 889021 is about 942.8791014759. The cubic root of 889021 is about 96.1547345477.

It can be divided in two parts, 8890 and 21, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 889021 in words is "eight hundred eighty-nine thousand, twenty-one".