198202097 has 4 divisors (see below), whose sum is σ = 200164596. Its totient is φ = 196239600.

The previous prime is 198202061. The next prime is 198202111. The reversal of 198202097 is 790202891.

198202097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 130896481 + 67305616 = 11441^2 + 8204^2 .

It is a cyclic number.

It is not a de Polignac number, because 198202097 - 2²⁶ = 131093233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 198202097.

It is not an unprimeable number, because it can be changed into a prime (198202027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981098 + ... + 981299.

It is an arithmetic number, because the mean of its divisors is an integer number (50041149).

Almost surely, 2^198202097 is an apocalyptic number.

It is an amenable number.

198202097 is a deficient number, since it is larger than the sum of its proper divisors (1962499).

198202097 is a wasteful number, since it uses less digits than its factorization.

198202097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962498.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 198202097 is about 14078.4266521512. The cubic root of 198202097 is about 583.0459035298.

The spelling of 198202097 in words is "one hundred ninety-eight million, two hundred two thousand, ninety-seven".