328233881 has 2 divisors, whose sum is σ = 328233882. Its totient is φ = 328233880.

The previous prime is 328233877. The next prime is 328233883. The reversal of 328233881 is 188332823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328153225 + 80656 = 18115^2 + 284^2 .

It is a cyclic number.

It is not a de Polignac number, because 328233881 - 2² = 328233877 is a prime.

It is a super-2 number, since 2×328233881² = 215474961272644322, which contains 22 as substring.

Together with 328233883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (328233883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164116940 + 164116941.

It is an arithmetic number, because the mean of its divisors is an integer number (164116941).

Almost surely, 2^328233881 is an apocalyptic number.

It is an amenable number.

328233881 is a deficient number, since it is larger than the sum of its proper divisors (1).

328233881 is an equidigital number, since it uses as much as digits as its factorization.

328233881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 38.

The square root of 328233881 is about 18117.2260845859. The cubic root of 328233881 is about 689.8073263056.

The spelling of 328233881 in words is "three hundred twenty-eight million, two hundred thirty-three thousand, eight hundred eighty-one".