9900203 has 2 divisors, whose sum is σ = 9900204. Its totient is φ = 9900202.

The previous prime is 9900199. The next prime is 9900251. The reversal of 9900203 is 3020099.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9900203 - 2² = 9900199 is a prime.

It is not a weakly prime, because it can be changed into another prime (9900283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4950101 + 4950102.

It is an arithmetic number, because the mean of its divisors is an integer number (4950102).

Almost surely, 2^9900203 is an apocalyptic number.

9900203 is a deficient number, since it is larger than the sum of its proper divisors (1).

9900203 is an equidigital number, since it uses as much as digits as its factorization.

9900203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 9900203 is about 3146.4588031627. The cubic root of 9900203 is about 214.7243845266.

The spelling of 9900203 in words is "nine million, nine hundred thousand, two hundred three".