71086 has 4 divisors (see below), whose sum is σ = 106632. Its totient is φ = 35542.

The previous prime is 71081. The next prime is 71089. The reversal of 71086 is 68017.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68017 = 17 ⋅4001.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17770 + ... + 17773.

It is an arithmetic number, because the mean of its divisors is an integer number (26658).

2⁷¹⁰⁸⁶ is an apocalyptic number.

71086 is a deficient number, since it is larger than the sum of its proper divisors (35546).

71086 is a wasteful number, since it uses less digits than its factorization.

71086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35545.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 71086 is about 266.6195791760. The cubic root of 71086 is about 41.4248895431.

The spelling of 71086 in words is "seventy-one thousand, eighty-six".