328644063 has 12 divisors (see below), whose sum is σ = 517863528. Its totient is φ = 199178160.

The previous prime is 328644031. The next prime is 328644073. The reversal of 328644063 is 360446823.

It is a happy number.

328644063 is a `hidden beast` number, since 3 + 2 + 8 + 644 + 0 + 6 + 3 = 666.

It is not a de Polignac number, because 328644063 - 2⁵ = 328644031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328644013) 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 11 ways as a sum of consecutive naturals, for example, 1659720 + ... + 1659917.

It is an arithmetic number, because the mean of its divisors is an integer number (43155294).

Almost surely, 2^328644063 is an apocalyptic number.

328644063 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

328644063 is a deficient number, since it is larger than the sum of its proper divisors (189219465).

328644063 is a wasteful number, since it uses less digits than its factorization.

328644063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319654 (or 3319651 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 328644063 is about 18128.5427710007. The cubic root of 328644063 is about 690.0945491104.

The spelling of 328644063 in words is "three hundred twenty-eight million, six hundred forty-four thousand, sixty-three".