998303 has 4 divisors (see below), whose sum is σ = 1002720. Its totient is φ = 993888.

The previous prime is 998287. The next prime is 998311. The reversal of 998303 is 303899.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 998303 - 2⁴ = 998287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 998303.

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 998303.

It is not an unprimeable number, because it can be changed into a prime (998353) 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, 1850 + ... + 2327.

It is an arithmetic number, because the mean of its divisors is an integer number (250680).

2⁹⁹⁸³⁰³ is an apocalyptic number.

998303 is a deficient number, since it is larger than the sum of its proper divisors (4417).

998303 is a wasteful number, since it uses less digits than its factorization.

998303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 998303 is about 999.1511397181. The cubic root of 998303 is about 99.9434013053.

The spelling of 998303 in words is "nine hundred ninety-eight thousand, three hundred three".