116389 has 8 divisors (see below), whose sum is σ = 143360. Its totient is φ = 92016.

The previous prime is 116387. The next prime is 116411. The reversal of 116389 is 983611.

It is a happy number.

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 116389 - 2¹ = 116387 is a prime.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116381) 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, 549 + ... + 730.

It is an arithmetic number, because the mean of its divisors is an integer number (17920).

2¹¹⁶³⁸⁹ is an apocalyptic number.

It is an amenable number.

116389 is a deficient number, since it is larger than the sum of its proper divisors (26971).

116389 is a wasteful number, since it uses less digits than its factorization.

116389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299.

The product of its digits is 1296, while the sum is 28.

The square root of 116389 is about 341.1583210183. The cubic root of 116389 is about 48.8244446645.

It can be divided in two parts, 116 and 389, that added together give a palindrome (505).

The spelling of 116389 in words is "one hundred sixteen thousand, three hundred eighty-nine".