9998199 has 24 divisors (see below), whose sum is σ = 15475200. Its totient is φ = 6201360.

The previous prime is 9998179. The next prime is 9998201. The reversal of 9998199 is 9918999.

It is a de Polignac number, because none of the positive numbers 2^k-9998199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9594 + ... + 10584.

It is an arithmetic number, because the mean of its divisors is an integer number (644800).

Almost surely, 2^9998199 is an apocalyptic number.

9998199 is a deficient number, since it is larger than the sum of its proper divisors (5477001).

9998199 is a wasteful number, since it uses less digits than its factorization.

9998199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1072 counting only the distinct ones).

The product of its digits is 472392, while the sum is 54.

The square root of 9998199 is about 3161.9928842425. The cubic root of 9998199 is about 215.4305344371.

The spelling of 9998199 in words is "nine million, nine hundred ninety-eight thousand, one hundred ninety-nine".