86285 has 4 divisors (see below), whose sum is σ = 103548. Its totient is φ = 69024.

The previous prime is 86269. The next prime is 86287. The reversal of 86285 is 58268.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13924 + 72361 = 118^2 + 269^2 .

It is a cyclic number.

It is not a de Polignac number, because 86285 - 2⁴ = 86269 is a prime.

It is a d-powerful number, because it can be written as 8² + 6⁵ + 2⁸ + 8² + 5⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86287) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8624 + ... + 8633.

It is an arithmetic number, because the mean of its divisors is an integer number (25887).

2⁸⁶²⁸⁵ is an apocalyptic number.

It is an amenable number.

86285 is a deficient number, since it is larger than the sum of its proper divisors (17263).

86285 is a wasteful number, since it uses less digits than its factorization.

86285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17262.

The product of its digits is 3840, while the sum is 29.

The square root of 86285 is about 293.7430850250. The cubic root of 86285 is about 44.1887552184.

The spelling of 86285 in words is "eighty-six thousand, two hundred eighty-five".