9998201 has 2 divisors, whose sum is σ = 9998202. Its totient is φ = 9998200.

The previous prime is 9998179. The next prime is 9998203. The reversal of 9998201 is 1028999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5180176 + 4818025 = 2276^2 + 2195^2 .

It is an emirp because it is prime and its reverse (1028999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9998201 - 2¹⁰ = 9997177 is a prime.

Together with 9998203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9998203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999100 + 4999101.

It is an arithmetic number, because the mean of its divisors is an integer number (4999101).

Almost surely, 2^9998201 is an apocalyptic number.

It is an amenable number.

9998201 is a deficient number, since it is larger than the sum of its proper divisors (1).

9998201 is an equidigital number, since it uses as much as digits as its factorization.

9998201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 9998201 is about 3161.9932004987. The cubic root of 9998201 is about 215.4305488017.

The spelling of 9998201 in words is "nine million, nine hundred ninety-eight thousand, two hundred one".