328027581 has 12 divisors (see below), whose sum is σ = 541505952. Its totient is φ = 187444296.

The previous prime is 328027573. The next prime is 328027589. The reversal of 328027581 is 185720823.

It is an interprime number because it is at equal distance from previous prime (328027573) and next prime (328027589).

It is not a de Polignac number, because 328027581 - 2³ = 328027573 is a prime.

It is a super-2 number, since 2×328027581² = 215204187793423122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328027589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2603331 + ... + 2603456.

It is an arithmetic number, because the mean of its divisors is an integer number (45125496).

Almost surely, 2^328027581 is an apocalyptic number.

It is an amenable number.

328027581 is a deficient number, since it is larger than the sum of its proper divisors (213478371).

328027581 is a wasteful number, since it uses less digits than its factorization.

328027581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5206800 (or 5206797 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 328027581 is about 18111.5317132483. The cubic root of 328027581 is about 689.6627778762.

The spelling of 328027581 in words is "three hundred twenty-eight million, twenty-seven thousand, five hundred eighty-one".