328718811 has 4 divisors (see below), whose sum is σ = 438291752. Its totient is φ = 219145872.

The previous prime is 328718809. The next prime is 328718827. The reversal of 328718811 is 118817823.

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

It is not a de Polignac number, because 328718811 - 2¹ = 328718809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 328718811.

It is not an unprimeable number, because it can be changed into a prime (328718801) 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, 54786466 + ... + 54786471.

It is an arithmetic number, because the mean of its divisors is an integer number (109572938).

Almost surely, 2^328718811 is an apocalyptic number.

328718811 is a deficient number, since it is larger than the sum of its proper divisors (109572941).

328718811 is a wasteful number, since it uses less digits than its factorization.

328718811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109572940.

The product of its digits is 21504, while the sum is 39.

The square root of 328718811 is about 18130.6042646129. The cubic root of 328718811 is about 690.1468643483.

The spelling of 328718811 in words is "three hundred twenty-eight million, seven hundred eighteen thousand, eight hundred eleven".