320565423 has 8 divisors (see below), whose sum is σ = 429659136. Its totient is φ = 212591000.

The previous prime is 320565383. The next prime is 320565439. The reversal of 320565423 is 324565023.

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 320565423 - 2¹³ = 320557231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320565023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279153 + ... + 280298.

It is an arithmetic number, because the mean of its divisors is an integer number (53707392).

Almost surely, 2^320565423 is an apocalyptic number.

320565423 is a deficient number, since it is larger than the sum of its proper divisors (109093713).

320565423 is a wasteful number, since it uses less digits than its factorization.

320565423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559645.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 320565423 is about 17904.3408982291. The cubic root of 320565423 is about 684.3929998477.

The spelling of 320565423 in words is "three hundred twenty million, five hundred sixty-five thousand, four hundred twenty-three".