199520798 has 12 divisors (see below), whose sum is σ = 307592712. Its totient is φ = 97062840.

The previous prime is 199520777. The next prime is 199520803. The reversal of 199520798 is 897025991.

It is a happy number.

199520798 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33698 + ... + 39173.

It is an arithmetic number, because the mean of its divisors is an integer number (25632726).

Almost surely, 2^199520798 is an apocalyptic number.

199520798 is a deficient number, since it is larger than the sum of its proper divisors (108071914).

199520798 is an equidigital number, since it uses as much as digits as its factorization.

199520798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72947 (or 72910 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 50.

The square root of 199520798 is about 14125.1831138573. The cubic root of 199520798 is about 584.3361090650.

The spelling of 199520798 in words is "one hundred ninety-nine million, five hundred twenty thousand, seven hundred ninety-eight".