116623 has 4 divisors (see below), whose sum is σ = 125608. Its totient is φ = 107640.

The previous prime is 116593. The next prime is 116639. The reversal of 116623 is 326611.

116623 is nontrivially palindromic in base 14.

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

It is a de Polignac number, because none of the positive numbers 2^k-116623 is a prime.

It is the 342-nd Hogben number.

It is a Duffinian number.

116623 is a lucky number.

It is a nialpdrome in base 13.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 116623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116663) by changing a digit.

It is a nontrivial repunit in base 341.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4473 + ... + 4498.

It is an arithmetic number, because the mean of its divisors is an integer number (31402).

2¹¹⁶⁶²³ is an apocalyptic number.

116623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

116623 is a deficient number, since it is larger than the sum of its proper divisors (8985).

116623 is an equidigital number, since it uses as much as digits as its factorization.

116623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8984.

The product of its digits is 216, while the sum is 19.

The square root of 116623 is about 341.5010980949. The cubic root of 116623 is about 48.8571432643.

The spelling of 116623 in words is "one hundred sixteen thousand, six hundred twenty-three".