328463381 has 2 divisors, whose sum is σ = 328463382. Its totient is φ = 328463380.

The previous prime is 328463371. The next prime is 328463417. The reversal of 328463381 is 183364823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307441156 + 21022225 = 17534^2 + 4585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328463381 is a prime.

It is a super-2 number, since 2×328463381² = 215776385315902322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328463371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164231690 + 164231691.

It is an arithmetic number, because the mean of its divisors is an integer number (164231691).

Almost surely, 2^328463381 is an apocalyptic number.

It is an amenable number.

328463381 is a deficient number, since it is larger than the sum of its proper divisors (1).

328463381 is an equidigital number, since it uses as much as digits as its factorization.

328463381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 38.

The square root of 328463381 is about 18123.5587289031. The cubic root of 328463381 is about 689.9680591530.

The spelling of 328463381 in words is "three hundred twenty-eight million, four hundred sixty-three thousand, three hundred eighty-one".