9629797789 has 2 divisors, whose sum is σ = 9629797790. Its totient is φ = 9629797788.

The previous prime is 9629797763. The next prime is 9629797813. The reversal of 9629797789 is 9877979269.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5548760100 + 4081037689 = 74490^2 + 63883^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9629797789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9629797729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4814898894 + 4814898895.

It is an arithmetic number, because the mean of its divisors is an integer number (4814898895).

Almost surely, 2^9629797789 is an apocalyptic number.

It is an amenable number.

9629797789 is a deficient number, since it is larger than the sum of its proper divisors (1).

9629797789 is an equidigital number, since it uses as much as digits as its factorization.

9629797789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216040608, while the sum is 73.

The square root of 9629797789 is about 98131.5331022603. The cubic root of 9629797789 is about 2127.5138168570.

The spelling of 9629797789 in words is "nine billion, six hundred twenty-nine million, seven hundred ninety-seven thousand, seven hundred eighty-nine".