199803982 has 8 divisors (see below), whose sum is σ = 342521136. Its totient is φ = 85630272.

The previous prime is 199803973. The next prime is 199804037. The reversal of 199803982 is 289308991.

199803982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 7135843 + ... + 7135870.

It is an arithmetic number, because the mean of its divisors is an integer number (42815142).

Almost surely, 2^199803982 is an apocalyptic number.

199803982 is a deficient number, since it is larger than the sum of its proper divisors (142717154).

199803982 is a wasteful number, since it uses less digits than its factorization.

199803982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14271722.

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 199803982 is about 14135.2036419713. The cubic root of 199803982 is about 584.6124318224.

The spelling of 199803982 in words is "one hundred ninety-nine million, eight hundred three thousand, nine hundred eighty-two".