198729383 has 4 divisors (see below), whose sum is σ = 202479048. Its totient is φ = 194979720.

The previous prime is 198729367. The next prime is 198729397. The reversal of 198729383 is 383927891.

It is a happy number.

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 198729383 - 2⁴ = 198729367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198729343) 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, 1874753 + ... + 1874858.

It is an arithmetic number, because the mean of its divisors is an integer number (50619762).

Almost surely, 2^198729383 is an apocalyptic number.

198729383 is a deficient number, since it is larger than the sum of its proper divisors (3749665).

198729383 is an equidigital number, since it uses as much as digits as its factorization.

198729383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749664.

The product of its digits is 653184, while the sum is 50.

The square root of 198729383 is about 14097.1409512709. The cubic root of 198729383 is about 583.5624801690.

The spelling of 198729383 in words is "one hundred ninety-eight million, seven hundred twenty-nine thousand, three hundred eighty-three".