7665089797 has 2 divisors, whose sum is σ = 7665089798. Its totient is φ = 7665089796.

The previous prime is 7665089753. The next prime is 7665089813. The reversal of 7665089797 is 7979805667.

7665089797 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5370104961 + 2294984836 = 73281^2 + 47906^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7665089797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7665689797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3832544898 + 3832544899.

It is an arithmetic number, because the mean of its divisors is an integer number (3832544899).

Almost surely, 2^7665089797 is an apocalyptic number.

It is an amenable number.

7665089797 is a deficient number, since it is larger than the sum of its proper divisors (1).

7665089797 is an equidigital number, since it uses as much as digits as its factorization.

7665089797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40007520, while the sum is 64.

The square root of 7665089797 is about 87550.4985536919. The cubic root of 7665089797 is about 1971.6920363749.

The spelling of 7665089797 in words is "seven billion, six hundred sixty-five million, eighty-nine thousand, seven hundred ninety-seven".