198340706 has 4 divisors (see below), whose sum is σ = 297511062. Its totient is φ = 99170352.

The previous prime is 198340699. The next prime is 198340711. The reversal of 198340706 is 607043891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 607043891 = 31 ⋅19582061.

It can be written as a sum of positive squares in only one way, i.e., 159390625 + 38950081 = 12625^2 + 6241^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 198340706.

It is an unprimeable number.

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, 49585175 + ... + 49585178.

Almost surely, 2^198340706 is an apocalyptic number.

198340706 is a deficient number, since it is larger than the sum of its proper divisors (99170356).

198340706 is an equidigital number, since it uses as much as digits as its factorization.

198340706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99170355.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 198340706 is about 14083.3485364809. The cubic root of 198340706 is about 583.1817860108.

The spelling of 198340706 in words is "one hundred ninety-eight million, three hundred forty thousand, seven hundred six".