998484 has 12 divisors (see below), whose sum is σ = 2329824. Its totient is φ = 332824.

The previous prime is 998471. The next prime is 998497. The reversal of 998484 is 484899.

It is an interprime number because it is at equal distance from previous prime (998471) and next prime (998497).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

998484 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41592 + ... + 41615.

It is an arithmetic number, because the mean of its divisors is an integer number (194152).

2⁹⁹⁸⁴⁸⁴ is an apocalyptic number.

It is an amenable number.

998484 is an abundant number, since it is smaller than the sum of its proper divisors (1331340).

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

998484 is a wasteful number, since it uses less digits than its factorization.

998484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83214 (or 83212 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 998484 is about 999.2417125000. The cubic root of 998484 is about 99.9494411090.

The spelling of 998484 in words is "nine hundred ninety-eight thousand, four hundred eighty-four".