327490531 has 2 divisors, whose sum is σ = 327490532. Its totient is φ = 327490530.

The previous prime is 327490529. The next prime is 327490561. The reversal of 327490531 is 135094723.

It is a weak prime.

It is an emirp because it is prime and its reverse (135094723) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 327490531 - 2¹ = 327490529 is a prime.

It is a super-2 number, since 2×327490531² = 214500095789323922, which contains 22 as substring.

Together with 327490529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (327490561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163745265 + 163745266.

It is an arithmetic number, because the mean of its divisors is an integer number (163745266).

Almost surely, 2^327490531 is an apocalyptic number.

327490531 is a deficient number, since it is larger than the sum of its proper divisors (1).

327490531 is an equidigital number, since it uses as much as digits as its factorization.

327490531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 327490531 is about 18096.6994504523. The cubic root of 327490531 is about 689.2861980475.

The spelling of 327490531 in words is "three hundred twenty-seven million, four hundred ninety thousand, five hundred thirty-one".