199493684 has 36 divisors (see below), whose sum is σ = 386882496. Its totient is φ = 89919648.

The previous prime is 199493683. The next prime is 199493699. The reversal of 199493684 is 486394991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199493683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25637 + ... + 32499.

It is an arithmetic number, because the mean of its divisors is an integer number (10746736).

Almost surely, 2^199493684 is an apocalyptic number.

It is an amenable number.

199493684 is a deficient number, since it is larger than the sum of its proper divisors (187388812).

199493684 is a wasteful number, since it uses less digits than its factorization.

199493684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6936 (or 6921 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 53.

The square root of 199493684 is about 14124.2233060795. The cubic root of 199493684 is about 584.3096382957.

The spelling of 199493684 in words is "one hundred ninety-nine million, four hundred ninety-three thousand, six hundred eighty-four".