199657383 has 8 divisors (see below), whose sum is σ = 266346096. Its totient is φ = 133036800.

The previous prime is 199657313. The next prime is 199657421. The reversal of 199657383 is 383756991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-199657383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199657303) 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 7 ways as a sum of consecutive naturals, for example, 9748 + ... + 22233.

It is an arithmetic number, because the mean of its divisors is an integer number (33293262).

Almost surely, 2^199657383 is an apocalyptic number.

199657383 is a deficient number, since it is larger than the sum of its proper divisors (66688713).

199657383 is a wasteful number, since it uses less digits than its factorization.

199657383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34065.

The product of its digits is 1224720, while the sum is 51.

The square root of 199657383 is about 14130.0170912848. The cubic root of 199657383 is about 584.4694173769.

The spelling of 199657383 in words is "one hundred ninety-nine million, six hundred fifty-seven thousand, three hundred eighty-three".