9983993899 has 8 divisors (see below), whose sum is σ = 10893864240. Its totient is φ = 9074496000.

The previous prime is 9983993863. The next prime is 9983993917.

It is a happy number.

9983993899 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 9983993899 - 2³³ = 1394059307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9983993809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35502 + ... + 145699.

It is an arithmetic number, because the mean of its divisors is an integer number (1361733030).

Almost surely, 2^9983993899 is an apocalyptic number.

9983993899 is a deficient number, since it is larger than the sum of its proper divisors (909870341).

9983993899 is a wasteful number, since it uses less digits than its factorization.

9983993899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186221.

The product of its digits is 306110016, while the sum is 76.

The square root of 9983993899 is about 99919.9374449364. The cubic root of 9983993899 is about 2153.2846062266.

The spelling of 9983993899 in words is "nine billion, nine hundred eighty-three million, nine hundred ninety-three thousand, eight hundred ninety-nine".