998528 has 32 divisors (see below), whose sum is σ = 2065500. Its totient is φ = 480256.

The previous prime is 998527. The next prime is 998537. The reversal of 998528 is 825899.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 937024 + 61504 = 968^2 + 248^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (998527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3578 + ... + 3846.

2⁹⁹⁸⁵²⁸ 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 998528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1032750).

998528 is an abundant number, since it is smaller than the sum of its proper divisors (1066972).

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

998528 is a wasteful number, since it uses less digits than its factorization.

998528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 300 counting only the distinct ones).

The product of its digits is 51840, while the sum is 41.

The square root of 998528 is about 999.2637289525. The cubic root of 998528 is about 99.9509092382.

The spelling of 998528 in words is "nine hundred ninety-eight thousand, five hundred twenty-eight".