86405 has 8 divisors (see below), whose sum is σ = 113184. Its totient is φ = 62800.

The previous prime is 86399. The next prime is 86413. The reversal of 86405 is 50468.

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

It is not a de Polignac number, because 86405 - 2⁴ = 86389 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731 + ... + 840.

It is an arithmetic number, because the mean of its divisors is an integer number (14148).

2⁸⁶⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

86405 is a deficient number, since it is larger than the sum of its proper divisors (26779).

86405 is a wasteful number, since it uses less digits than its factorization.

86405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 86405 is about 293.9472741837. The cubic root of 86405 is about 44.2092307523.

Subtracting from 86405 its reverse (50468), we obtain a cube (35937 = 33³).

The spelling of 86405 in words is "eighty-six thousand, four hundred five".