9903599947 has 2 divisors, whose sum is σ = 9903599948. Its totient is φ = 9903599946.

The previous prime is 9903599921. The next prime is 9903600001. The reversal of 9903599947 is 7499953099.

9903599947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9903599947 - 2⁷ = 9903599819 is a prime.

It is not a weakly prime, because it can be changed into another prime (9903594947) 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, 4951799973 + 4951799974.

It is an arithmetic number, because the mean of its divisors is an integer number (4951799974).

Almost surely, 2^9903599947 is an apocalyptic number.

9903599947 is a deficient number, since it is larger than the sum of its proper divisors (1).

9903599947 is an equidigital number, since it uses as much as digits as its factorization.

9903599947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24800580, while the sum is 64.

The square root of 9903599947 is about 99516.8324807417. The cubic root of 9903599947 is about 2147.4894038489.

The spelling of 9903599947 in words is "nine billion, nine hundred three million, five hundred ninety-nine thousand, nine hundred forty-seven".