9998099 has 2 divisors, whose sum is σ = 9998100. Its totient is φ = 9998098.

The previous prime is 9998033. The next prime is 9998117. The reversal of 9998099 is 9908999.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9998099 - 2¹² = 9994003 is a prime.

It is a super-2 number, since 2×9998099² = 199923967227602, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9998099.

It is not a weakly prime, because it can be changed into another prime (9998699) 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, 4999049 + 4999050.

It is an arithmetic number, because the mean of its divisors is an integer number (4999050).

Almost surely, 2^9998099 is an apocalyptic number.

9998099 is a deficient number, since it is larger than the sum of its proper divisors (1).

9998099 is an equidigital number, since it uses as much as digits as its factorization.

9998099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472392, while the sum is 53.

The square root of 9998099 is about 3161.9770713906. The cubic root of 9998099 is about 215.4298162035.

The spelling of 9998099 in words is "nine million, nine hundred ninety-eight thousand, ninety-nine".