9983899 has 4 divisors (see below), whose sum is σ = 10012536. Its totient is φ = 9955264.

The previous prime is 9983867. The next prime is 9983929.

9983899 is nontrivially palindromic in base 10.

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 9983899 - 2⁵ = 9983867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9983839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13789 + ... + 14494.

It is an arithmetic number, because the mean of its divisors is an integer number (2503134).

Almost surely, 2^9983899 is an apocalyptic number.

9983899 is a deficient number, since it is larger than the sum of its proper divisors (28637).

9983899 is a wasteful number, since it uses less digits than its factorization.

9983899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28636.

The product of its digits is 1259712, while the sum is 55.

The square root of 9983899 is about 3159.7308429675. The cubic root of 9983899 is about 215.3277783800.

The spelling of 9983899 in words is "nine million, nine hundred eighty-three thousand, eight hundred ninety-nine".