198949083 has 4 divisors (see below), whose sum is σ = 265265448. Its totient is φ = 132632720.

The previous prime is 198949067. The next prime is 198949109. The reversal of 198949083 is 380949891.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 198949083 - 2⁴ = 198949067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198949783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33158178 + ... + 33158183.

It is an arithmetic number, because the mean of its divisors is an integer number (66316362).

Almost surely, 2^198949083 is an apocalyptic number.

198949083 is a deficient number, since it is larger than the sum of its proper divisors (66316365).

198949083 is an equidigital number, since it uses as much as digits as its factorization.

198949083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66316364.

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 198949083 is about 14104.9311589954. The cubic root of 198949083 is about 583.7774483132. Note that the first 3 decimals are identical.

The spelling of 198949083 in words is "one hundred ninety-eight million, nine hundred forty-nine thousand, eighty-three".