998363 has 4 divisors (see below), whose sum is σ = 1004880. Its totient is φ = 991848.

The previous prime is 998353. The next prime is 998377. The reversal of 998363 is 363899.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 363899 = 103 ⋅3533.

It is a cyclic number.

It is not a de Polignac number, because 998363 - 2¹⁴ = 981979 is a prime.

It is a Duffinian number.

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, 3023 + ... + 3336.

It is an arithmetic number, because the mean of its divisors is an integer number (251220).

2⁹⁹⁸³⁶³ is an apocalyptic number.

998363 is a deficient number, since it is larger than the sum of its proper divisors (6517).

998363 is a wasteful number, since it uses less digits than its factorization.

998363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6516.

The product of its digits is 34992, while the sum is 38.

The square root of 998363 is about 999.1811647544. The cubic root of 998363 is about 99.9454035310.

The spelling of 998363 in words is "nine hundred ninety-eight thousand, three hundred sixty-three".