86812 has 12 divisors (see below), whose sum is σ = 165816. Its totient is φ = 39440.

The previous prime is 86783. The next prime is 86813. The reversal of 86812 is 21868.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86813) by changing a digit.

86812 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943 + ... + 1030.

It is an arithmetic number, because the mean of its divisors is an integer number (13818).

2⁸⁶⁸¹² is an apocalyptic number.

It is an amenable number.

86812 is a deficient number, since it is larger than the sum of its proper divisors (79004).

86812 is a wasteful number, since it uses less digits than its factorization.

86812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988 (or 1986 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 86812 is about 294.6387618763. The cubic root of 86812 is about 44.2785360746.

It can be divided in two parts, 86 and 812, that added together give a palindrome (898).

The spelling of 86812 in words is "eighty-six thousand, eight hundred twelve".