196163898 has 32 divisors (see below), whose sum is σ = 448796160. Its totient is φ = 55994160.

The previous prime is 196163881. The next prime is 196163909. The reversal of 196163898 is 898361691.

It is a self number, because there is not a number n which added to its sum of digits gives 196163898.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74773 + ... + 77351.

It is an arithmetic number, because the mean of its divisors is an integer number (14024880).

Almost surely, 2^196163898 is an apocalyptic number.

196163898 is an abundant number, since it is smaller than the sum of its proper divisors (252632262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196163898 is a wasteful number, since it uses less digits than its factorization.

196163898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4402.

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

The square root of 196163898 is about 14005.8522768163. The cubic root of 196163898 is about 581.0404412331.

The spelling of 196163898 in words is "one hundred ninety-six million, one hundred sixty-three thousand, eight hundred ninety-eight".