9789983 has 4 divisors (see below), whose sum is σ = 11188560. Its totient is φ = 8391408.

The previous prime is 9789971. The next prime is 9789991. The reversal of 9789983 is 3899879.

9789983 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

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 9789983 - 2⁸ = 9789727 is a prime.

It is a Duffinian number.

9789983 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9789953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699278 + ... + 699291.

It is an arithmetic number, because the mean of its divisors is an integer number (2797140).

Almost surely, 2^9789983 is an apocalyptic number.

9789983 is a deficient number, since it is larger than the sum of its proper divisors (1398577).

9789983 is a wasteful number, since it uses less digits than its factorization.

9789983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398576.

The product of its digits is 979776, while the sum is 53.

The square root of 9789983 is about 3128.8948528194. The cubic root of 9789983 is about 213.9245592527.

The spelling of 9789983 in words is "nine million, seven hundred eighty-nine thousand, nine hundred eighty-three".