998393243 has 2 divisors, whose sum is σ = 998393244. Its totient is φ = 998393242.

The previous prime is 998393191. The next prime is 998393251. The reversal of 998393243 is 342393899.

998393243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998393243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 998393191 and 998393200.

It is not a weakly prime, because it can be changed into another prime (998393273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499196621 + 499196622.

It is an arithmetic number, because the mean of its divisors is an integer number (499196622).

Almost surely, 2^998393243 is an apocalyptic number.

998393243 is a deficient number, since it is larger than the sum of its proper divisors (1).

998393243 is an equidigital number, since it uses as much as digits as its factorization.

998393243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1259712, while the sum is 50.

The square root of 998393243 is about 31597.3613297060. The cubic root of 998393243 is about 999.4641272250.

The spelling of 998393243 in words is "nine hundred ninety-eight million, three hundred ninety-three thousand, two hundred forty-three".