999998203 has 2 divisors, whose sum is σ = 999998204. Its totient is φ = 999998202.

The previous prime is 999998183. The next prime is 999998243. The reversal of 999998203 is 302899999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999998203 - 2¹³ = 999990011 is a prime.

It is not a weakly prime, because it can be changed into another prime (999998243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999101 + 499999102.

It is an arithmetic number, because the mean of its divisors is an integer number (499999102).

Almost surely, 2^999998203 is an apocalyptic number.

999998203 is a deficient number, since it is larger than the sum of its proper divisors (1).

999998203 is an equidigital number, since it uses as much as digits as its factorization.

999998203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2834352, while the sum is 58.

The square root of 999998203 is about 31622.7481886063. The cubic root of 999998203 is about 999.9994009996. Note that the first 3 decimals are identical.

The spelling of 999998203 in words is "nine hundred ninety-nine million, nine hundred ninety-eight thousand, two hundred three".