998544 has 40 divisors (see below), whose sum is σ = 2624832. Its totient is φ = 327040.

The previous prime is 998539. The next prime is 998551. The reversal of 998544 is 445899.

998544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 10.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 998544.

It is an unprimeable number.

998544 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3262 + ... + 3554.

2⁹⁹⁸⁵⁴⁴ 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 998544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312416).

998544 is an abundant number, since it is smaller than the sum of its proper divisors (1626288).

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

998544 is a wasteful number, since it uses less digits than its factorization.

998544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 369 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 998544 is about 999.2717348149. The cubic root of 998544 is about 99.9514430928.

The spelling of 998544 in words is "nine hundred ninety-eight thousand, five hundred forty-four".