86836 has 12 divisors (see below), whose sum is σ = 161028. Its totient is φ = 40832.

The previous prime is 86813. The next prime is 86837. The reversal of 86836 is 63868.

It can be written as a sum of positive squares in 2 ways, for example, as 62500 + 24336 = 250^2 + 156^2 .

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 86798 and 86807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86837) by changing a digit.

86836 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, 571 + ... + 706.

It is an arithmetic number, because the mean of its divisors is an integer number (13419).

2⁸⁶⁸³⁶ is an apocalyptic number.

It is an amenable number.

86836 is a deficient number, since it is larger than the sum of its proper divisors (74192).

86836 is a wasteful number, since it uses less digits than its factorization.

86836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298 (or 1296 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 86836 is about 294.6794869006. The cubic root of 86836 is about 44.2826161055.

The spelling of 86836 in words is "eighty-six thousand, eight hundred thirty-six".