9983856479 has 2 divisors, whose sum is σ = 9983856480. Its totient is φ = 9983856478.

The previous prime is 9983856427. The next prime is 9983856637. The reversal of 9983856479 is 9746583899.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9983856479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9983853479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4991928239 + 4991928240.

It is an arithmetic number, because the mean of its divisors is an integer number (4991928240).

Almost surely, 2^9983856479 is an apocalyptic number.

9983856479 is a deficient number, since it is larger than the sum of its proper divisors (1).

9983856479 is an equidigital number, since it uses as much as digits as its factorization.

9983856479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117573120, while the sum is 68.

The square root of 9983856479 is about 99919.2497920196. The cubic root of 9983856479 is about 2153.2747268894.

The spelling of 9983856479 in words is "nine billion, nine hundred eighty-three million, eight hundred fifty-six thousand, four hundred seventy-nine".