86489 has 4 divisors (see below), whose sum is σ = 93156. Its totient is φ = 79824.

The previous prime is 86477. The next prime is 86491. The reversal of 86489 is 98468.

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 6400 + 80089 = 80^2 + 283^2 .

It is a cyclic number.

It is not a de Polignac number, because 86489 - 2¹² = 82393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 86489.

It is not an unprimeable number, because it can be changed into a prime (86389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3314 + ... + 3339.

It is an arithmetic number, because the mean of its divisors is an integer number (23289).

2⁸⁶⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

86489 is a deficient number, since it is larger than the sum of its proper divisors (6667).

86489 is a wasteful number, since it uses less digits than its factorization.

86489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6666.

The product of its digits is 13824, while the sum is 35.

The square root of 86489 is about 294.0901222415. The cubic root of 86489 is about 44.2235523488.

It can be divided in two parts, 86 and 489, that added together give a palindrome (575).

The spelling of 86489 in words is "eighty-six thousand, four hundred eighty-nine".