9689889793 has 2 divisors, whose sum is σ = 9689889794. Its totient is φ = 9689889792.

The previous prime is 9689889779. The next prime is 9689889809. The reversal of 9689889793 is 3979889869.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8676549904 + 1013339889 = 93148^2 + 31833^2 .

It is a cyclic number.

It is not a de Polignac number, because 9689889793 - 2⁹ = 9689889281 is a prime.

It is not a weakly prime, because it can be changed into another prime (9689889763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4844944896 + 4844944897.

It is an arithmetic number, because the mean of its divisors is an integer number (4844944897).

Almost surely, 2^9689889793 is an apocalyptic number.

It is an amenable number.

9689889793 is a deficient number, since it is larger than the sum of its proper divisors (1).

9689889793 is an equidigital number, since it uses as much as digits as its factorization.

9689889793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423263232, while the sum is 76.

The square root of 9689889793 is about 98437.2378371112. The cubic root of 9689889793 is about 2131.9300243998.

Adding to 9689889793 its sum of digits (76), we get a palindrome (9689889869).

The spelling of 9689889793 in words is "nine billion, six hundred eighty-nine million, eight hundred eighty-nine thousand, seven hundred ninety-three".