328208393 has 4 divisors (see below), whose sum is σ = 328589568. Its totient is φ = 327827220.

The previous prime is 328208369. The next prime is 328208407. The reversal of 328208393 is 393802823.

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 328208393 - 2²⁶ = 261099529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328208333) 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, 189293 + ... + 191018.

It is an arithmetic number, because the mean of its divisors is an integer number (82147392).

Almost surely, 2^328208393 is an apocalyptic number.

It is an amenable number.

328208393 is a deficient number, since it is larger than the sum of its proper divisors (381175).

328208393 is an equidigital number, since it uses as much as digits as its factorization.

328208393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381174.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 328208393 is about 18116.5226519882. The cubic root of 328208393 is about 689.7894708827.

The spelling of 328208393 in words is "three hundred twenty-eight million, two hundred eight thousand, three hundred ninety-three".