423320329 has 4 divisors (see below), whose sum is σ = 424930176. Its totient is φ = 421710484.

The previous prime is 423320321. The next prime is 423320341. The reversal of 423320329 is 923023324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423320329 - 2³ = 423320321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423320297 and 423320306.

It is not an unprimeable number, because it can be changed into a prime (423320321) 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, 804529 + ... + 805054.

It is an arithmetic number, because the mean of its divisors is an integer number (106232544).

Almost surely, 2^423320329 is an apocalyptic number.

It is an amenable number.

423320329 is a deficient number, since it is larger than the sum of its proper divisors (1609847).

423320329 is a wasteful number, since it uses less digits than its factorization.

423320329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609846.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 423320329 is about 20574.7497919173. The cubic root of 423320329 is about 750.8555150136.

The spelling of 423320329 in words is "four hundred twenty-three million, three hundred twenty thousand, three hundred twenty-nine".