199975763 has 4 divisors (see below), whose sum is σ = 215358528. Its totient is φ = 184593000.

The previous prime is 199975759. The next prime is 199975829. The reversal of 199975763 is 367579991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 199975763 - 2² = 199975759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199975699 and 199975708.

It is not an unprimeable number, because it can be changed into a prime (199975733) 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, 7691363 + ... + 7691388.

It is an arithmetic number, because the mean of its divisors is an integer number (53839632).

Almost surely, 2^199975763 is an apocalyptic number.

199975763 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

199975763 is a deficient number, since it is larger than the sum of its proper divisors (15382765).

199975763 is a wasteful number, since it uses less digits than its factorization.

199975763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15382764.

The product of its digits is 3214890, while the sum is 56.

The square root of 199975763 is about 14141.2786904155. The cubic root of 199975763 is about 584.7799235489.

The spelling of 199975763 in words is "one hundred ninety-nine million, nine hundred seventy-five thousand, seven hundred sixty-three".