199680795 has 40 divisors (see below), whose sum is σ = 362535360. Its totient is φ = 105148368.

The previous prime is 199680787. The next prime is 199680797. The reversal of 199680795 is 597086991.

It is not a de Polignac number, because 199680795 - 2³ = 199680787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199680797) 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 39 ways as a sum of consecutive naturals, for example, 2527566 + ... + 2527644.

It is an arithmetic number, because the mean of its divisors is an integer number (9063384).

Almost surely, 2^199680795 is an apocalyptic number.

199680795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

199680795 is a deficient number, since it is larger than the sum of its proper divisors (162854565).

199680795 is an frugal number, since it uses more digits than its factorization.

199680795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 54.

The square root of 199680795 is about 14130.8455161041. The cubic root of 199680795 is about 584.4922616163.

The spelling of 199680795 in words is "one hundred ninety-nine million, six hundred eighty thousand, seven hundred ninety-five".