328843920347 has 4 divisors (see below), whose sum is σ = 328845105840. Its totient is φ = 328842734856.

The previous prime is 328843920313. The next prime is 328843920367. The reversal of 328843920347 is 743029348823.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 743029348823 = 4093 ⋅181536611.

It is a cyclic number.

It is not a de Polignac number, because 328843920347 - 2²⁸ = 328575484891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328843920367) 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, 71354 + ... + 814112.

It is an arithmetic number, because the mean of its divisors is an integer number (82211276460).

Almost surely, 2^328843920347 is an apocalyptic number.

328843920347 is a deficient number, since it is larger than the sum of its proper divisors (1185493).

328843920347 is an equidigital number, since it uses as much as digits as its factorization.

328843920347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185492.

The product of its (nonzero) digits is 6967296, while the sum is 53.

The spelling of 328843920347 in words is "three hundred twenty-eight billion, eight hundred forty-three million, nine hundred twenty thousand, three hundred forty-seven".