84395117 has 2 divisors, whose sum is σ = 84395118. Its totient is φ = 84395116.

The previous prime is 84395083. The next prime is 84395149. The reversal of 84395117 is 71159348.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48706441 + 35688676 = 6979^2 + 5974^2 .

It is a cyclic number.

It is not a de Polignac number, because 84395117 - 2²⁶ = 17286253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84395317) 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, 42197558 + 42197559.

It is an arithmetic number, because the mean of its divisors is an integer number (42197559).

Almost surely, 2^84395117 is an apocalyptic number.

It is an amenable number.

84395117 is a deficient number, since it is larger than the sum of its proper divisors (1).

84395117 is an equidigital number, since it uses as much as digits as its factorization.

84395117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 38.

The square root of 84395117 is about 9186.6815009556. The cubic root of 84395117 is about 438.6375157189.

The spelling of 84395117 in words is "eighty-four million, three hundred ninety-five thousand, one hundred seventeen".