198847118 has 4 divisors (see below), whose sum is σ = 298270680. Its totient is φ = 99423558.

The previous prime is 198847097. The next prime is 198847151. The reversal of 198847118 is 811748891.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49711778 + ... + 49711781.

It is an arithmetic number, because the mean of its divisors is an integer number (74567670).

Almost surely, 2^198847118 is an apocalyptic number.

198847118 is a deficient number, since it is larger than the sum of its proper divisors (99423562).

198847118 is an equidigital number, since it uses as much as digits as its factorization.

198847118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99423561.

The product of its digits is 129024, while the sum is 47.

The square root of 198847118 is about 14101.3161797046. The cubic root of 198847118 is about 583.6776991066.

The spelling of 198847118 in words is "one hundred ninety-eight million, eight hundred forty-seven thousand, one hundred eighteen".