998000203 has 2 divisors, whose sum is σ = 998000204. Its totient is φ = 998000202.

The previous prime is 998000197. The next prime is 998000233. The reversal of 998000203 is 302000899.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-998000203 is a prime.

It is not a weakly prime, because it can be changed into another prime (998000233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499000101 + 499000102.

It is an arithmetic number, because the mean of its divisors is an integer number (499000102).

Almost surely, 2^998000203 is an apocalyptic number.

998000203 is a deficient number, since it is larger than the sum of its proper divisors (1).

998000203 is an equidigital number, since it uses as much as digits as its factorization.

998000203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 998000203 is about 31591.1412107888. The cubic root of 998000203 is about 999.3329561514.

The spelling of 998000203 in words is "nine hundred ninety-eight million, two hundred three", and thus it is an aban number.