198948784 has 10 divisors (see below), whose sum is σ = 385463300. Its totient is φ = 99474384.

The previous prime is 198948751. The next prime is 198948811. The reversal of 198948784 is 487849891.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6217134 + ... + 6217165.

It is an arithmetic number, because the mean of its divisors is an integer number (38546330).

Almost surely, 2^198948784 is an apocalyptic number.

It is an amenable number.

198948784 is a deficient number, since it is larger than the sum of its proper divisors (186514516).

198948784 is a wasteful number, since it uses less digits than its factorization.

198948784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12434307 (or 12434301 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 58.

The square root of 198948784 is about 14104.9205598614. The cubic root of 198948784 is about 583.7771558606. Note that the first 3 decimals are identical.

The spelling of 198948784 in words is "one hundred ninety-eight million, nine hundred forty-eight thousand, seven hundred eighty-four".