328335481 has 2 divisors, whose sum is σ = 328335482. Its totient is φ = 328335480.

The previous prime is 328335479. The next prime is 328335493. The reversal of 328335481 is 184533823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288456256 + 39879225 = 16984^2 + 6315^2 .

It is an emirp because it is prime and its reverse (184533823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 328335481 - 2¹ = 328335479 is a prime.

It is a super-2 number, since 2×328335481² = 215608376167002722, which contains 22 as substring.

Together with 328335479, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 328335481.

It is not a weakly prime, because it can be changed into another prime (328335461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164167740 + 164167741.

It is an arithmetic number, because the mean of its divisors is an integer number (164167741).

Almost surely, 2^328335481 is an apocalyptic number.

It is an amenable number.

328335481 is a deficient number, since it is larger than the sum of its proper divisors (1).

328335481 is an equidigital number, since it uses as much as digits as its factorization.

328335481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 37.

The square root of 328335481 is about 18120.0298288938. The cubic root of 328335481 is about 689.8784922215.

The spelling of 328335481 in words is "three hundred twenty-eight million, three hundred thirty-five thousand, four hundred eighty-one".