998201 has 2 divisors, whose sum is σ = 998202. Its totient is φ = 998200.

The previous prime is 998197. The next prime is 998213. The reversal of 998201 is 102899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 678976 + 319225 = 824^2 + 565^2 .

It is a cyclic number.

It is not a de Polignac number, because 998201 - 2² = 998197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p₇₈₃₇₄ and since 998201 and 78374 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (998281) 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, 499100 + 499101.

It is an arithmetic number, because the mean of its divisors is an integer number (499101).

2⁹⁹⁸²⁰¹ is an apocalyptic number.

It is an amenable number.

998201 is a deficient number, since it is larger than the sum of its proper divisors (1).

998201 is an equidigital number, since it uses as much as digits as its factorization.

998201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 998201 is about 999.1000950856. The cubic root of 998201 is about 99.9399973373.

The spelling of 998201 in words is "nine hundred ninety-eight thousand, two hundred one".