7707939697 has 2 divisors, whose sum is σ = 7707939698. Its totient is φ = 7707939696.

The previous prime is 7707939671. The next prime is 7707939709. The reversal of 7707939697 is 7969397077.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5013914481 + 2694025216 = 70809^2 + 51904^2 .

It is an emirp because it is prime and its reverse (7969397077) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7707939697 is a prime.

It is not a weakly prime, because it can be changed into another prime (7707939647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3853969848 + 3853969849.

It is an arithmetic number, because the mean of its divisors is an integer number (3853969849).

Almost surely, 2^7707939697 is an apocalyptic number.

It is an amenable number.

7707939697 is a deficient number, since it is larger than the sum of its proper divisors (1).

7707939697 is an equidigital number, since it uses as much as digits as its factorization.

7707939697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31505922, while the sum is 64.

The square root of 7707939697 is about 87794.8728400469. The cubic root of 7707939697 is about 1975.3593062676.

The spelling of 7707939697 in words is "seven billion, seven hundred seven million, nine hundred thirty-nine thousand, six hundred ninety-seven".