328316893 has 4 divisors (see below), whose sum is σ = 328512060. Its totient is φ = 328121728.

The previous prime is 328316809. The next prime is 328316899. The reversal of 328316893 is 398613823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 398613823 = 89 ⋅4478807.

It can be written as a sum of positive squares in 2 ways, for example, as 313892089 + 14424804 = 17717^2 + 3798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328316893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328316899) 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, 95038 + ... + 98431.

It is an arithmetic number, because the mean of its divisors is an integer number (82128015).

Almost surely, 2^328316893 is an apocalyptic number.

It is an amenable number.

328316893 is a deficient number, since it is larger than the sum of its proper divisors (195167).

328316893 is a wasteful number, since it uses less digits than its factorization.

328316893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195166.

The product of its digits is 186624, while the sum is 43.

The square root of 328316893 is about 18119.5169085713. The cubic root of 328316893 is about 689.8654733185.

The spelling of 328316893 in words is "three hundred twenty-eight million, three hundred sixteen thousand, eight hundred ninety-three".