4243923 has 12 divisors (see below), whose sum is σ = 6158880. Its totient is φ = 2816016.

The previous prime is 4243903. The next prime is 4243927. The reversal of 4243923 is 3293424.

It is a happy number.

It is not a de Polignac number, because 4243923 - 2⁸ = 4243667 is a prime.

It is a d-powerful number, because it can be written as 4 + 2¹¹ + 4¹¹ + 3⁹ + 9 + 2¹³ + 3⁹ .

It is not an unprimeable number, because it can be changed into a prime (4243927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1165 + ... + 3137.

It is an arithmetic number, because the mean of its divisors is an integer number (513240).

Almost surely, 2^4243923 is an apocalyptic number.

4243923 is a deficient number, since it is larger than the sum of its proper divisors (1914957).

4243923 is a wasteful number, since it uses less digits than its factorization.

4243923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218 (or 2215 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 4243923 is about 2060.0783965665. The cubic root of 4243923 is about 161.9033488411.

The spelling of 4243923 in words is "four million, two hundred forty-three thousand, nine hundred twenty-three".