320323907 has 8 divisors (see below), whose sum is σ = 341452800. Its totient is φ = 299622024.

The previous prime is 320323889. The next prime is 320323919. The reversal of 320323907 is 709323023.

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 320323907 - 2¹⁰ = 320322883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320323907.

It is not an unprimeable number, because it can be changed into a prime (320323987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105203 + ... + 108204.

It is an arithmetic number, because the mean of its divisors is an integer number (42681600).

Almost surely, 2^320323907 is an apocalyptic number.

320323907 is a deficient number, since it is larger than the sum of its proper divisors (21128893).

320323907 is a wasteful number, since it uses less digits than its factorization.

320323907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213505.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 320323907 is about 17897.5950060336. The cubic root of 320323907 is about 684.2210813396.

The spelling of 320323907 in words is "three hundred twenty million, three hundred twenty-three thousand, nine hundred seven".