83855 has 8 divisors (see below), whose sum is σ = 104064. Its totient is φ = 64800.

The previous prime is 83843. The next prime is 83857. The reversal of 83855 is 55838.

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

It is not a de Polignac number, because 83855 - 2⁶ = 83791 is a prime.

It is a super-2 number, since 2×83855² = 14063322050, which contains 22 as substring.

It is a Duffinian 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 (83857) 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, 116 + ... + 425.

It is an arithmetic number, because the mean of its divisors is an integer number (13008).

2⁸³⁸⁵⁵ is an apocalyptic number.

83855 is a deficient number, since it is larger than the sum of its proper divisors (20209).

83855 is a wasteful number, since it uses less digits than its factorization.

83855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577.

The product of its digits is 4800, while the sum is 29.

The square root of 83855 is about 289.5772781142. The cubic root of 83855 is about 43.7699772711.

The spelling of 83855 in words is "eighty-three thousand, eight hundred fifty-five".