171008897 has 2 divisors, whose sum is σ = 171008898. Its totient is φ = 171008896.

The previous prime is 171008879. The next prime is 171008923. The reversal of 171008897 is 798800171.

Together with previous prime (171008879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105657841 + 65351056 = 10279^2 + 8084^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-171008897 is a prime.

It is not a weakly prime, because it can be changed into another prime (171008837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85504448 + 85504449.

It is an arithmetic number, because the mean of its divisors is an integer number (85504449).

Almost surely, 2^171008897 is an apocalyptic number.

It is an amenable number.

171008897 is a deficient number, since it is larger than the sum of its proper divisors (1).

171008897 is an equidigital number, since it uses as much as digits as its factorization.

171008897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 41.

The square root of 171008897 is about 13077.0370114946. The cubic root of 171008897 is about 555.0595363992.

The spelling of 171008897 in words is "one hundred seventy-one million, eight thousand, eight hundred ninety-seven".