199995712 has 56 divisors (see below), whose sum is σ = 462174336. Its totient is φ = 84085248.

The previous prime is 199995673. The next prime is 199995739. The reversal of 199995712 is 217599991.

It is a happy number.

199995712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 199995712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19533 + ... + 27955.

Almost surely, 2^199995712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199995712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231087168).

199995712 is an abundant number, since it is smaller than the sum of its proper divisors (262178624).

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

199995712 is an equidigital number, since it uses as much as digits as its factorization.

199995712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8495 (or 8485 counting only the distinct ones).

The product of its digits is 459270, while the sum is 52.

The square root of 199995712 is about 14141.9840192245. The cubic root of 199995712 is about 584.7993682167.

The spelling of 199995712 in words is "one hundred ninety-nine million, nine hundred ninety-five thousand, seven hundred twelve".