7423 has 4 divisors (see below), whose sum is σ = 8008. Its totient is φ = 6840.

The previous prime is 7417. The next prime is 7433. The reversal of 7423 is 3247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3247 = 17 ⋅191.

It is a cyclic number.

It is not a de Polignac number, because 7423 - 2⁹ = 6911 is a prime.

It is a super-4 number, since 4×7423⁴ = 12144449506652164, which contains 4444 as substring.

It is a plaindrome in base 9 and base 16.

It is a nialpdrome in base 6.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 7397 and 7406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7433) by changing a digit.

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, 273 + ... + 298.

It is an arithmetic number, because the mean of its divisors is an integer number (2002).

2⁷⁴²³ is an apocalyptic number.

7423 is a deficient number, since it is larger than the sum of its proper divisors (585).

7423 is a wasteful number, since it uses less digits than its factorization.

7423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584.

The product of its digits is 168, while the sum is 16.

The square root of 7423 is about 86.1568337394. The cubic root of 7423 is about 19.5071199072.

The spelling of 7423 in words is "seven thousand, four hundred twenty-three", and thus it is an iban number.