320775393 has 8 divisors (see below), whose sum is σ = 434712256. Its totient is φ = 210344400.

The previous prime is 320775353. The next prime is 320775419. The reversal of 320775393 is 393577023.

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

It is not a de Polignac number, because 320775393 - 2⁸ = 320775137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320775353) 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, 876253 + ... + 876618.

It is an arithmetic number, because the mean of its divisors is an integer number (54339032).

Almost surely, 2^320775393 is an apocalyptic number.

It is an amenable number.

320775393 is a deficient number, since it is larger than the sum of its proper divisors (113936863).

320775393 is a wasteful number, since it uses less digits than its factorization.

320775393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752935.

The product of its (nonzero) digits is 119070, while the sum is 39.

The square root of 320775393 is about 17910.2036001828. The cubic root of 320775393 is about 684.5423927894.

The spelling of 320775393 in words is "three hundred twenty million, seven hundred seventy-five thousand, three hundred ninety-three".