198772892 has 12 divisors (see below), whose sum is σ = 353555496. Its totient is φ = 97757040.

The previous prime is 198772883. The next prime is 198772909. The reversal of 198772892 is 298277891.

It is a happy number.

198772892 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 407078 + ... + 407565.

It is an arithmetic number, because the mean of its divisors is an integer number (29462958).

Almost surely, 2^198772892 is an apocalyptic number.

It is an amenable number.

198772892 is a deficient number, since it is larger than the sum of its proper divisors (154782604).

198772892 is a wasteful number, since it uses less digits than its factorization.

198772892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814708 (or 814706 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 53.

The square root of 198772892 is about 14098.6840520667. The cubic root of 198772892 is about 583.6050646573.

The spelling of 198772892 in words is "one hundred ninety-eight million, seven hundred seventy-two thousand, eight hundred ninety-two".