7423943 has 4 divisors (see below), whose sum is σ = 7445328. Its totient is φ = 7402560.

The previous prime is 7423937. The next prime is 7423961. The reversal of 7423943 is 3493247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3493247 = 277 ⋅12611.

It is a cyclic number.

It is not a de Polignac number, because 7423943 - 2⁶ = 7423879 is a prime.

It is a super-2 number, since 2×7423943² = 110229859334498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7423903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10163 + ... + 10868.

It is an arithmetic number, because the mean of its divisors is an integer number (1861332).

Almost surely, 2^7423943 is an apocalyptic number.

7423943 is a deficient number, since it is larger than the sum of its proper divisors (21385).

7423943 is a wasteful number, since it uses less digits than its factorization.

7423943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21384.

The product of its digits is 18144, while the sum is 32.

The square root of 7423943 is about 2724.6913586680. The cubic root of 7423943 is about 195.0794591799.

The spelling of 7423943 in words is "seven million, four hundred twenty-three thousand, nine hundred forty-three".