328710971 has 4 divisors (see below), whose sum is σ = 329103600. Its totient is φ = 328318344.

The previous prime is 328710937. The next prime is 328710983. The reversal of 328710971 is 179017823.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328710971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328710071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195056 + ... + 196733.

It is an arithmetic number, because the mean of its divisors is an integer number (82275900).

Almost surely, 2^328710971 is an apocalyptic number.

328710971 is a deficient number, since it is larger than the sum of its proper divisors (392629).

328710971 is an equidigital number, since it uses as much as digits as its factorization.

328710971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392628.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 328710971 is about 18130.3880543137. The cubic root of 328710971 is about 690.1413775977.

The spelling of 328710971 in words is "three hundred twenty-eight million, seven hundred ten thousand, nine hundred seventy-one".