117623 has 12 divisors (see below), whose sum is σ = 139992. Its totient is φ = 97920.

The previous prime is 117619. The next prime is 117643. The reversal of 117623 is 326711.

It is a happy number.

It is not a de Polignac number, because 117623 - 2² = 117619 is a prime.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 117595 and 117604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3161 + ... + 3197.

It is an arithmetic number, because the mean of its divisors is an integer number (11666).

117623 is a Friedman number, since it can be written as 7^(3*(1+1))-26, using all its digits and the basic arithmetic operations.

2¹¹⁷⁶²³ is an apocalyptic number.

117623 is a deficient number, since it is larger than the sum of its proper divisors (22369).

117623 is a wasteful number, since it uses less digits than its factorization.

117623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 65 counting only the distinct ones).

The product of its digits is 252, while the sum is 20.

The square root of 117623 is about 342.9620970311. The cubic root of 117623 is about 48.9963901270.

The spelling of 117623 in words is "one hundred seventeen thousand, six hundred twenty-three".