86171167 has 2 divisors, whose sum is σ = 86171168. Its totient is φ = 86171166.

The previous prime is 86171153. The next prime is 86171263. The reversal of 86171167 is 76117168.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86171167 - 2¹⁹ = 85646879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86171117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43085583 + 43085584.

It is an arithmetic number, because the mean of its divisors is an integer number (43085584).

Almost surely, 2^86171167 is an apocalyptic number.

86171167 is a deficient number, since it is larger than the sum of its proper divisors (1).

86171167 is an equidigital number, since it uses as much as digits as its factorization.

86171167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 37.

The square root of 86171167 is about 9282.8426141996. The cubic root of 86171167 is about 441.6931440319.

The spelling of 86171167 in words is "eighty-six million, one hundred seventy-one thousand, one hundred sixty-seven".