9998323 has 2 divisors, whose sum is σ = 9998324. Its totient is φ = 9998322.

The previous prime is 9998321. The next prime is 9998333. The reversal of 9998323 is 3238999.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3238999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9998323 - 2¹ = 9998321 is a prime.

Together with 9998321, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 9998323.

It is not a weakly prime, because it can be changed into another prime (9998321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999161 + 4999162.

It is an arithmetic number, because the mean of its divisors is an integer number (4999162).

Almost surely, 2^9998323 is an apocalyptic number.

9998323 is a deficient number, since it is larger than the sum of its proper divisors (1).

9998323 is an equidigital number, since it uses as much as digits as its factorization.

9998323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 43.

The square root of 9998323 is about 3162.0124920689. The cubic root of 9998323 is about 215.4314250400.

The spelling of 9998323 in words is "nine million, nine hundred ninety-eight thousand, three hundred twenty-three".