9999996983 has 2 divisors, whose sum is σ = 9999996984. Its totient is φ = 9999996982.

The previous prime is 9999996977. The next prime is 9999996991. The reversal of 9999996983 is 3896999999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9999996983 - 2²⁴ = 9983219767 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 9999996898 and 9999996907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9999996283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999998491 + 4999998492.

It is an arithmetic number, because the mean of its divisors is an integer number (4999998492).

Almost surely, 2^9999996983 is an apocalyptic number.

9999996983 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999996983 is an equidigital number, since it uses as much as digits as its factorization.

9999996983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 688747536, while the sum is 80.

The square root of 9999996983 is about 99999.9849149989. The cubic root of 9999996983 is about 2154.4344733675.

The spelling of 9999996983 in words is "nine billion, nine hundred ninety-nine million, nine hundred ninety-six thousand, nine hundred eighty-three".