199976984 has 16 divisors (see below), whose sum is σ = 397013400. Its totient is φ = 94106752.

The previous prime is 199976983. The next prime is 199977017. The reversal of 199976984 is 489679991.

It is a happy number.

199976984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199976983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 735074 + ... + 735345.

Almost surely, 2^199976984 is an apocalyptic number.

It is an amenable number.

199976984 is a deficient number, since it is larger than the sum of its proper divisors (197036416).

199976984 is a wasteful number, since it uses less digits than its factorization.

199976984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470442 (or 1470438 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 62.

The square root of 199976984 is about 14141.3218618346. The cubic root of 199976984 is about 584.7811137179.

The spelling of 199976984 in words is "one hundred ninety-nine million, nine hundred seventy-six thousand, nine hundred eighty-four".