84317171 has 2 divisors, whose sum is σ = 84317172. Its totient is φ = 84317170.

The previous prime is 84317159. The next prime is 84317203. The reversal of 84317171 is 17171348.

It is a happy number.

It is an a-pointer prime, because the next prime (84317203) can be obtained adding 84317171 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84317171 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84317111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42158585 + 42158586.

It is an arithmetic number, because the mean of its divisors is an integer number (42158586).

Almost surely, 2^84317171 is an apocalyptic number.

84317171 is a deficient number, since it is larger than the sum of its proper divisors (1).

84317171 is an equidigital number, since it uses as much as digits as its factorization.

84317171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 32.

The square root of 84317171 is about 9182.4381838377. The cubic root of 84317171 is about 438.5024345586.

The spelling of 84317171 in words is "eighty-four million, three hundred seventeen thousand, one hundred seventy-one".