998328 has 16 divisors (see below), whose sum is σ = 2495880. Its totient is φ = 332768.

The previous prime is 998311. The next prime is 998329. The reversal of 998328 is 823899.

It is a super-3 number, since 3×998328³ = 2984977146233350656, which contains 333 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 998328.

It is not an unprimeable number, because it can be changed into a prime (998329) by changing a digit.

998328 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 20775 + ... + 20822.

2⁹⁹⁸³²⁸ is an apocalyptic number.

It is an amenable number.

998328 is an abundant number, since it is smaller than the sum of its proper divisors (1497552).

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

998328 is a wasteful number, since it uses less digits than its factorization.

998328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41606 (or 41602 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 998328 is about 999.1636502596. The cubic root of 998328 is about 99.9442355757.

It can be divided in two parts, 9983 and 28, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 998328 in words is "nine hundred ninety-eight thousand, three hundred twenty-eight".