199996596 has 18 divisors (see below), whose sum is σ = 505547042. Its totient is φ = 66665520.

The previous prime is 199996583. The next prime is 199996597. The reversal of 199996596 is 695699991.

It can be written as a sum of positive squares in only one way, i.e., 145443600 + 54552996 = 12060^2 + 7386^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199996597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2777695 + ... + 2777766.

Almost surely, 2^199996596 is an apocalyptic number.

It is an amenable number.

199996596 is an abundant number, since it is smaller than the sum of its proper divisors (305550446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199996596 is a wasteful number, since it uses less digits than its factorization.

199996596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555471 (or 5555466 counting only the distinct ones).

The product of its digits is 10628820, while the sum is 63.

The square root of 199996596 is about 14142.0152736447. The cubic root of 199996596 is about 584.8002298383.

The spelling of 199996596 in words is "one hundred ninety-nine million, nine hundred ninety-six thousand, five hundred ninety-six".