423943 has 4 divisors (see below), whose sum is σ = 456568. Its totient is φ = 391320.

The previous prime is 423931. The next prime is 423949. The reversal of 423943 is 349324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 423943 - 2⁹ = 423431 is a prime.

It is a d-powerful number, because it can be written as 4⁶ + 2³ + 9 + 3¹¹ + 4⁸ + 3¹¹ .

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16293 + ... + 16318.

It is an arithmetic number, because the mean of its divisors is an integer number (114142).

2⁴²³⁹⁴³ is an apocalyptic number.

423943 is a deficient number, since it is larger than the sum of its proper divisors (32625).

423943 is a wasteful number, since it uses less digits than its factorization.

423943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32624.

The product of its digits is 2592, while the sum is 25.

The square root of 423943 is about 651.1090538458. The cubic root of 423943 is about 75.1223484510.

The spelling of 423943 in words is "four hundred twenty-three thousand, nine hundred forty-three".