328075491 has 8 divisors (see below), whose sum is σ = 437944320. Its totient is φ = 218461832.

The previous prime is 328075487. The next prime is 328075523. The reversal of 328075491 is 194570823.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 328075491 - 2² = 328075487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (328075091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60771 + ... + 65948.

It is an arithmetic number, because the mean of its divisors is an integer number (54743040).

Almost surely, 2^328075491 is an apocalyptic number.

328075491 is a deficient number, since it is larger than the sum of its proper divisors (109868829).

328075491 is a wasteful number, since it uses less digits than its factorization.

328075491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127585.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 328075491 is about 18112.8543029529. The cubic root of 328075491 is about 689.6963524261.

The spelling of 328075491 in words is "three hundred twenty-eight million, seventy-five thousand, four hundred ninety-one".