198394684 has 12 divisors (see below), whose sum is σ = 359163000. Its totient is φ = 95776688.

The previous prime is 198394663. The next prime is 198394697. The reversal of 198394684 is 486493891.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 855034 + ... + 855265.

It is an arithmetic number, because the mean of its divisors is an integer number (29930250).

Almost surely, 2^198394684 is an apocalyptic number.

It is an amenable number.

198394684 is a deficient number, since it is larger than the sum of its proper divisors (160768316).

198394684 is a wasteful number, since it uses less digits than its factorization.

198394684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710332 (or 1710330 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 52.

The square root of 198394684 is about 14085.2647827437. The cubic root of 198394684 is about 583.2346851053.

The spelling of 198394684 in words is "one hundred ninety-eight million, three hundred ninety-four thousand, six hundred eighty-four".