86855 has 8 divisors (see below), whose sum is σ = 108000. Its totient is φ = 66976.

The previous prime is 86851. The next prime is 86857. The reversal of 86855 is 55868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86855 - 2² = 86851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155 + ... + 444.

It is an arithmetic number, because the mean of its divisors is an integer number (13500).

2⁸⁶⁸⁵⁵ is an apocalyptic number.

86855 is a deficient number, since it is larger than the sum of its proper divisors (21145).

86855 is a wasteful number, since it uses less digits than its factorization.

86855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633.

The product of its digits is 9600, while the sum is 32.

The square root of 86855 is about 294.7117235537. The cubic root of 86855 is about 44.2858455970.

The spelling of 86855 in words is "eighty-six thousand, eight hundred fifty-five".