86171711 has 4 divisors (see below), whose sum is σ = 87584424. Its totient is φ = 84759000.

The previous prime is 86171681. The next prime is 86171737. The reversal of 86171711 is 11717168.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86171711 - 2⁶ = 86171647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86171611) 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 in 3 ways as a sum of consecutive naturals, for example, 706265 + ... + 706386.

It is an arithmetic number, because the mean of its divisors is an integer number (21896106).

Almost surely, 2^86171711 is an apocalyptic number.

86171711 is a deficient number, since it is larger than the sum of its proper divisors (1412713).

86171711 is a wasteful number, since it uses less digits than its factorization.

86171711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412712.

The product of its digits is 2352, while the sum is 32.

The square root of 86171711 is about 9282.8719155227. The cubic root of 86171711 is about 441.6940735020.

Adding to 86171711 its reverse (11717168), we get a palindrome (97888879).

The spelling of 86171711 in words is "eighty-six million, one hundred seventy-one thousand, seven hundred eleven".