9923783 has 2 divisors, whose sum is σ = 9923784. Its totient is φ = 9923782.

The previous prime is 9923747. The next prime is 9923789. The reversal of 9923783 is 3873299.

9923783 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (3873299) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9923783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9923783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9923789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4961891 + 4961892.

It is an arithmetic number, because the mean of its divisors is an integer number (4961892).

Almost surely, 2^9923783 is an apocalyptic number.

9923783 is a deficient number, since it is larger than the sum of its proper divisors (1).

9923783 is an equidigital number, since it uses as much as digits as its factorization.

9923783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 41.

The square root of 9923783 is about 3150.2036442110. The cubic root of 9923783 is about 214.8947240138.

The spelling of 9923783 in words is "nine million, nine hundred twenty-three thousand, seven hundred eighty-three".