9789961763 has 2 divisors, whose sum is σ = 9789961764. Its totient is φ = 9789961762.

The previous prime is 9789961739. The next prime is 9789961771. The reversal of 9789961763 is 3671699879.

It is a happy number.

9789961763 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 a cyclic number.

It is not a de Polignac number, because 9789961763 - 2¹⁴ = 9789945379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9789961763.

It is not a weakly prime, because it can be changed into another prime (9789961703) 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, 4894980881 + 4894980882.

It is an arithmetic number, because the mean of its divisors is an integer number (4894980882).

Almost surely, 2^9789961763 is an apocalyptic number.

9789961763 is a deficient number, since it is larger than the sum of its proper divisors (1).

9789961763 is an equidigital number, since it uses as much as digits as its factorization.

9789961763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30862944, while the sum is 65.

The square root of 9789961763 is about 98944.2356229002. The cubic root of 9789961763 is about 2139.2440456673.

The spelling of 9789961763 in words is "nine billion, seven hundred eighty-nine million, nine hundred sixty-one thousand, seven hundred sixty-three".