82389 has 8 divisors (see below), whose sum is σ = 113760. Its totient is φ = 52976.

The previous prime is 82387. The next prime is 82393. The reversal of 82389 is 98328.

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 82389 - 2¹ = 82387 is a prime.

It is an Ulam number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82387) 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, 387 + ... + 560.

It is an arithmetic number, because the mean of its divisors is an integer number (14220).

2⁸²³⁸⁹ is an apocalyptic number.

It is an amenable number.

82389 is a deficient number, since it is larger than the sum of its proper divisors (31371).

82389 is a wasteful number, since it uses less digits than its factorization.

82389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979.

The product of its digits is 3456, while the sum is 30.

The square root of 82389 is about 287.0348410908. The cubic root of 82389 is about 43.5134058299.

The spelling of 82389 in words is "eighty-two thousand, three hundred eighty-nine".