9983606723 has 16 divisors (see below), whose sum is σ = 10310867616. Its totient is φ = 9660591360.

The previous prime is 9983606701. The next prime is 9983606741. The reversal of 9983606723 is 3276063899.

It is a Cunningham number, because it is equal to 99918²-1.

It is a cyclic number.

It is not a de Polignac number, because 9983606723 - 2⁸ = 9983606467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9983606123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4095461 + ... + 4097897.

It is an arithmetic number, because the mean of its divisors is an integer number (644429226).

Almost surely, 2^9983606723 is an apocalyptic number.

9983606723 is a deficient number, since it is larger than the sum of its proper divisors (327260893).

9983606723 is a wasteful number, since it uses less digits than its factorization.

9983606723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The square root of 9983606723 is about 99917.9999949959. Note that the first 5 decimals coincide. The cubic root of 9983606723 is about 2153.2567713105.

The spelling of 9983606723 in words is "nine billion, nine hundred eighty-three million, six hundred six thousand, seven hundred twenty-three".