86311 has 2 divisors, whose sum is σ = 86312. Its totient is φ = 86310.

The previous prime is 86297. The next prime is 86323. The reversal of 86311 is 11368.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86311 - 2⁷ = 86183 is a prime.

It is a Chen prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43155 + 43156.

It is an arithmetic number, because the mean of its divisors is an integer number (43156).

2⁸⁶³¹¹ is an apocalyptic number.

86311 is a deficient number, since it is larger than the sum of its proper divisors (1).

86311 is an equidigital number, since it uses as much as digits as its factorization.

86311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

The square root of 86311 is about 293.7873380525. The cubic root of 86311 is about 44.1931931943.

Adding to 86311 its reverse (11368), we get a palindrome (97679).

The spelling of 86311 in words is "eighty-six thousand, three hundred eleven".