9800198 has 4 divisors (see below), whose sum is σ = 14700300. Its totient is φ = 4900098.

The previous prime is 9800191. The next prime is 9800207. The reversal of 9800198 is 8910089.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9800191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2450048 + ... + 2450051.

It is an arithmetic number, because the mean of its divisors is an integer number (3675075).

Almost surely, 2^9800198 is an apocalyptic number.

9800198 is a deficient number, since it is larger than the sum of its proper divisors (4900102).

9800198 is a wasteful number, since it uses less digits than its factorization.

9800198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4900101.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 9800198 is about 3130.5267927299. The cubic root of 9800198 is about 213.9989373109.

The spelling of 9800198 in words is "nine million, eight hundred thousand, one hundred ninety-eight".