6705387089 has 2 divisors, whose sum is σ = 6705387090. Its totient is φ = 6705387088.

The previous prime is 6705386999. The next prime is 6705387113. The reversal of 6705387089 is 9807835076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5447620864 + 1257766225 = 73808^2 + 35465^2 .

It is a cyclic number.

It is not a de Polignac number, because 6705387089 - 2⁸ = 6705386833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6705387089.

It is not a weakly prime, because it can be changed into another prime (6705387589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3352693544 + 3352693545.

It is an arithmetic number, because the mean of its divisors is an integer number (3352693545).

Almost surely, 2^6705387089 is an apocalyptic number.

It is an amenable number.

6705387089 is a deficient number, since it is larger than the sum of its proper divisors (1).

6705387089 is an equidigital number, since it uses as much as digits as its factorization.

6705387089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The square root of 6705387089 is about 81886.4279902354. The cubic root of 6705387089 is about 1885.7087573428.

The spelling of 6705387089 in words is "six billion, seven hundred five million, three hundred eighty-seven thousand, eighty-nine".