998323 has 4 divisors (see below), whose sum is σ = 1011040. Its totient is φ = 985608.

The previous prime is 998311. The next prime is 998329. The reversal of 998323 is 323899.

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

It is a 6-Lehmer number, since φ(998323) divides (998323-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 998323 - 2⁹ = 997811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998329) 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, 6240 + ... + 6397.

It is an arithmetic number, because the mean of its divisors is an integer number (252760).

2⁹⁹⁸³²³ is an apocalyptic number.

998323 is a deficient number, since it is larger than the sum of its proper divisors (12717).

998323 is a wasteful number, since it uses less digits than its factorization.

998323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12716.

The product of its digits is 11664, while the sum is 34.

The square root of 998323 is about 999.1611481638. The cubic root of 998323 is about 99.9440687228.

The spelling of 998323 in words is "nine hundred ninety-eight thousand, three hundred twenty-three".