890028 has 60 divisors (see below), whose sum is σ = 2419032. Its totient is φ = 285120.

The previous prime is 890027. The next prime is 890053. The reversal of 890028 is 820098.

890028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 889983 and 890010.

It is not an unprimeable number, because it can be changed into a prime (890027) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13251 + ... + 13317.

2⁸⁹⁰⁰²⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 890028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1209516).

890028 is an abundant number, since it is smaller than the sum of its proper divisors (1529004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

890028 is a wasteful number, since it uses less digits than its factorization.

890028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 890028 is about 943.4129530593. The cubic root of 890028 is about 96.1910258845.

The spelling of 890028 in words is "eight hundred ninety thousand, twenty-eight".