320479193 has 4 divisors (see below), whose sum is σ = 320820708. Its totient is φ = 320137680.

The previous prime is 320479153. The next prime is 320479207. The reversal of 320479193 is 391974023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 270536704 + 49942489 = 16448^2 + 7067^2 .

It is a cyclic number.

It is not a de Polignac number, because 320479193 - 2¹⁶ = 320413657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320479153) 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, 169346 + ... + 171227.

It is an arithmetic number, because the mean of its divisors is an integer number (80205177).

Almost surely, 2^320479193 is an apocalyptic number.

It is an amenable number.

320479193 is a deficient number, since it is larger than the sum of its proper divisors (341515).

320479193 is an equidigital number, since it uses as much as digits as its factorization.

320479193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341514.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 320479193 is about 17901.9326610285. The cubic root of 320479193 is about 684.3316285991.

The spelling of 320479193 in words is "three hundred twenty million, four hundred seventy-nine thousand, one hundred ninety-three".