9949783 has 2 divisors, whose sum is σ = 9949784. Its totient is φ = 9949782.

The previous prime is 9949769. The next prime is 9949829. The reversal of 9949783 is 3879499.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9949783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9949703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4974891 + 4974892.

It is an arithmetic number, because the mean of its divisors is an integer number (4974892).

Almost surely, 2^9949783 is an apocalyptic number.

9949783 is a deficient number, since it is larger than the sum of its proper divisors (1).

9949783 is an equidigital number, since it uses as much as digits as its factorization.

9949783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 49.

The square root of 9949783 is about 3154.3276621176. The cubic root of 9949783 is about 215.0822328307.

The spelling of 9949783 in words is "nine million, nine hundred forty-nine thousand, seven hundred eighty-three".