1709668897 has 2 divisors, whose sum is σ = 1709668898. Its totient is φ = 1709668896.

The previous prime is 1709668847. The next prime is 1709668921. The reversal of 1709668897 is 7988669071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 886610176 + 823058721 = 29776^2 + 28689^2 .

It is a cyclic number.

It is not a de Polignac number, because 1709668897 - 2²³ = 1701280289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1709668837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 854834448 + 854834449.

It is an arithmetic number, because the mean of its divisors is an integer number (854834449).

Almost surely, 2^1709668897 is an apocalyptic number.

It is an amenable number.

1709668897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1709668897 is an equidigital number, since it uses as much as digits as its factorization.

1709668897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 61.

The square root of 1709668897 is about 41348.1426064098. The cubic root of 1709668897 is about 1195.7415953205.

The spelling of 1709668897 in words is "one billion, seven hundred nine million, six hundred sixty-eight thousand, eight hundred ninety-seven".