9983606623 has 2 divisors, whose sum is σ = 9983606624. Its totient is φ = 9983606622.

The previous prime is 9983606621. The next prime is 9983606627. The reversal of 9983606623 is 3266063899.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9983606623 - 2¹ = 9983606621 is a prime.

Together with 9983606621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9983606621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4991803311 + 4991803312.

It is an arithmetic number, because the mean of its divisors is an integer number (4991803312).

Almost surely, 2^9983606623 is an apocalyptic number.

9983606623 is a deficient number, since it is larger than the sum of its proper divisors (1).

9983606623 is an equidigital number, since it uses as much as digits as its factorization.

9983606623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2519424, while the sum is 52.

The square root of 9983606623 is about 99917.9994945856. Note that the first 3 decimals coincide. The cubic root of 9983606623 is about 2153.2567641212.

The spelling of 9983606623 in words is "nine billion, nine hundred eighty-three million, six hundred six thousand, six hundred twenty-three".