423309 has 8 divisors (see below), whose sum is σ = 568800. Its totient is φ = 280016.

The previous prime is 423307. The next prime is 423323. The reversal of 423309 is 903324.

423309 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 423309 - 2¹ = 423307 is a prime.

423309 is strictly pandigital in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423307) 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 7 ways as a sum of consecutive naturals, for example, 27 + ... + 920.

It is an arithmetic number, because the mean of its divisors is an integer number (71100).

2⁴²³³⁰⁹ is an apocalyptic number.

It is an amenable number.

423309 is a deficient number, since it is larger than the sum of its proper divisors (145491).

423309 is a wasteful number, since it uses less digits than its factorization.

423309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 423309 is about 650.6220100796. The cubic root of 423309 is about 75.0848816762.

The spelling of 423309 in words is "four hundred twenty-three thousand, three hundred nine".