198717472 has 12 divisors (see below), whose sum is σ = 391225086. Its totient is φ = 99358720.

The previous prime is 198717451. The next prime is 198717503. The reversal of 198717472 is 274717891.

It can be written as a sum of positive squares in only one way, i.e., 198133776 + 583696 = 14076^2 + 764^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3104929 + ... + 3104992.

Almost surely, 2^198717472 is an apocalyptic number.

It is an amenable number.

198717472 is a deficient number, since it is larger than the sum of its proper divisors (192507614).

198717472 is an equidigital number, since it uses as much as digits as its factorization.

198717472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6209931 (or 6209923 counting only the distinct ones).

The product of its digits is 197568, while the sum is 46.

The square root of 198717472 is about 14096.7184833918. The cubic root of 198717472 is about 583.5508211792.

The spelling of 198717472 in words is "one hundred ninety-eight million, seven hundred seventeen thousand, four hundred seventy-two".