9728959979 has 2 divisors, whose sum is σ = 9728959980. Its totient is φ = 9728959978.

The previous prime is 9728959943. The next prime is 9728960009. The reversal of 9728959979 is 9799598279.

9728959979 is digitally balanced in base 2, 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 (9799598279) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9728959979 - 2¹² = 9728955883 is a prime.

It is not a weakly prime, because it can be changed into another prime (9728979979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4864479989 + 4864479990.

It is an arithmetic number, because the mean of its divisors is an integer number (4864479990).

Almost surely, 2^9728959979 is an apocalyptic number.

9728959979 is a deficient number, since it is larger than the sum of its proper divisors (1).

9728959979 is an equidigital number, since it uses as much as digits as its factorization.

9728959979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 231472080, while the sum is 74.

The square root of 9728959979 is about 98635.4904636257. The cubic root of 9728959979 is about 2134.7915362278.

The spelling of 9728959979 in words is "nine billion, seven hundred twenty-eight million, nine hundred fifty-nine thousand, nine hundred seventy-nine".