199215896 has 16 divisors (see below), whose sum is σ = 407487240. Its totient is φ = 90552640.

The previous prime is 199215871. The next prime is 199215899. The reversal of 199215896 is 698512991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199215899) 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 3 ways as a sum of consecutive naturals, for example, 1131821 + ... + 1131996.

Almost surely, 2^199215896 is an apocalyptic number.

It is an amenable number.

199215896 is an abundant number, since it is smaller than the sum of its proper divisors (208271344).

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

199215896 is a wasteful number, since it uses less digits than its factorization.

199215896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263834 (or 2263830 counting only the distinct ones).

The product of its digits is 349920, while the sum is 50.

The square root of 199215896 is about 14114.3861361378. The cubic root of 199215896 is about 584.0383020478.

The spelling of 199215896 in words is "one hundred ninety-nine million, two hundred fifteen thousand, eight hundred ninety-six".