198808916 has 6 divisors (see below), whose sum is σ = 347915610. Its totient is φ = 99404456.

The previous prime is 198808879. The next prime is 198808979. The reversal of 198808916 is 619808891.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 165122500 + 33686416 = 12850^2 + 5804^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24851111 + ... + 24851118.

It is an arithmetic number, because the mean of its divisors is an integer number (57985935).

Almost surely, 2^198808916 is an apocalyptic number.

It is an amenable number.

198808916 is a deficient number, since it is larger than the sum of its proper divisors (149106694).

198808916 is a wasteful number, since it uses less digits than its factorization.

198808916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49702233 (or 49702231 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 50.

The square root of 198808916 is about 14099.9615602313. The cubic root of 198808916 is about 583.6403184901.

The spelling of 198808916 in words is "one hundred ninety-eight million, eight hundred eight thousand, nine hundred sixteen".