3923 has 2 divisors, whose sum is σ = 3924.
Its totient is φ = 3922.
The previous prime is 3919. The next prime is 3929. The reversal of 3923 is 3293.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 3923 - 22 = 3919 is a prime.
It is a plaindrome in base 15.
It is a nialpdrome in base 16.
It is not a weakly prime, because it can be changed into another prime (3929) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1961 + 1962.
It is an arithmetic number, because the mean of its divisors is an integer number (1962).
23923 is an apocalyptic number.
3923 is a deficient number, since it is larger than the sum of its proper divisors (1).
3923 is an equidigital number, since it uses as much as digits as its factorization.
3923 is an evil number, because the sum of its binary digits is even.
The product of its digits is 162, while the sum is 17.
The square root of 3923 is about 62.6338566592.
The cubic root of 3923 is about 15.7714916144.
Subtracting from 3923 its reverse (3293), we obtain a triangular number (630 = T35).
It can be divided in two parts, 392 and 3, that multiplied together give a triangular number (1176 = T48).
The spelling of 3923 in words is "three thousand, nine hundred twenty-three".