6987708697 has 2 divisors, whose sum is σ = 6987708698. Its totient is φ = 6987708696.

The previous prime is 6987708647. The next prime is 6987708737. The reversal of 6987708697 is 7968077896.

6987708697 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., 5766276096 + 1221432601 = 75936^2 + 34949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6987708697 is a prime.

It is not a weakly prime, because it can be changed into another prime (6987708617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3493854348 + 3493854349.

It is an arithmetic number, because the mean of its divisors is an integer number (3493854349).

Almost surely, 2^6987708697 is an apocalyptic number.

It is an amenable number.

6987708697 is a deficient number, since it is larger than the sum of its proper divisors (1).

6987708697 is an equidigital number, since it uses as much as digits as its factorization.

6987708697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64012032, while the sum is 67.

The square root of 6987708697 is about 83592.5157953749. The cubic root of 6987708697 is about 1911.8108879130.

The spelling of 6987708697 in words is "six billion, nine hundred eighty-seven million, seven hundred eight thousand, six hundred ninety-seven".