9623 has 2 divisors, whose sum is σ = 9624.
Its totient is φ = 9622.
The previous prime is 9619. The next prime is 9629. The reversal of 9623 is 3269.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 9623 - 22 = 9619 is a prime.
It is a super-3 number, since 3×96233 = 2673330862101, which contains 333 as substring.
It is a plaindrome in base 12.
It is a junction number, because it is equal to n+sod(n) for n = 9595 and 9604.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (9629) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4811 + 4812.
It is an arithmetic number, because the mean of its divisors is an integer number (4812).
29623 is an apocalyptic number.
9623 is a deficient number, since it is larger than the sum of its proper divisors (1).
9623 is an equidigital number, since it uses as much as digits as its factorization.
9623 is an evil number, because the sum of its binary digits is even.
The product of its digits is 324, while the sum is 20.
The square root of 9623 is about 98.0968908784.
The cubic root of 9623 is about 21.2701308656.
The spelling of 9623 in words is "nine thousand, six hundred twenty-three".