171596897 has 2 divisors, whose sum is σ = 171596898. Its totient is φ = 171596896.

The previous prime is 171596851. The next prime is 171596899. The reversal of 171596897 is 798695171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146506816 + 25090081 = 12104^2 + 5009^2 .

It is a cyclic number.

It is not a de Polignac number, because 171596897 - 2⁶ = 171596833 is a prime.

Together with 171596899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (171596899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85798448 + 85798449.

It is an arithmetic number, because the mean of its divisors is an integer number (85798449).

Almost surely, 2^171596897 is an apocalyptic number.

It is an amenable number.

171596897 is a deficient number, since it is larger than the sum of its proper divisors (1).

171596897 is an equidigital number, since it uses as much as digits as its factorization.

171596897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 53.

The square root of 171596897 is about 13099.4998759495. The cubic root of 171596897 is about 555.6949841349.

The spelling of 171596897 in words is "one hundred seventy-one million, five hundred ninety-six thousand, eight hundred ninety-seven".