7923 has 8 divisors (see below), whose sum is σ = 11200. Its totient is φ = 4968.

The previous prime is 7919. The next prime is 7927. The reversal of 7923 is 3297.

It is an interprime number because it is at equal distance from previous prime (7919) and next prime (7927).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7923 - 2² = 7919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7923.

It is not an unprimeable number, because it can be changed into a prime (7927) 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, 13 + ... + 126.

It is an arithmetic number, because the mean of its divisors is an integer number (1400).

2⁷⁹²³ is an apocalyptic number.

7923 is a deficient number, since it is larger than the sum of its proper divisors (3277).

7923 is a wasteful number, since it uses less digits than its factorization.

7923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161.

The product of its digits is 378, while the sum is 21.

The square root of 7923 is about 89.0112352459. The cubic root of 7923 is about 19.9356263573.

The spelling of 7923 in words is "seven thousand, nine hundred twenty-three".