327428531 has 16 divisors (see below), whose sum is σ = 351859200. Its totient is φ = 304099488.

The previous prime is 327428527. The next prime is 327428533. The reversal of 327428531 is 135824723.

It is a cyclic number.

It is not a de Polignac number, because 327428531 - 2² = 327428527 is a prime.

It is a super-2 number, since 2×327428531² = 214418885825635922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 327428491 and 327428500.

It is not an unprimeable number, because it can be changed into a prime (327428533) 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 15 ways as a sum of consecutive naturals, for example, 81590 + ... + 85508.

It is an arithmetic number, because the mean of its divisors is an integer number (21991200).

Almost surely, 2^327428531 is an apocalyptic number.

327428531 is a deficient number, since it is larger than the sum of its proper divisors (24430669).

327428531 is a wasteful number, since it uses less digits than its factorization.

327428531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4058.

The product of its digits is 40320, while the sum is 35.

The square root of 327428531 is about 18094.9863498152. The cubic root of 327428531 is about 689.2426971038.

The spelling of 327428531 in words is "three hundred twenty-seven million, four hundred twenty-eight thousand, five hundred thirty-one".