327993131 has 2 divisors, whose sum is σ = 327993132. Its totient is φ = 327993130.

The previous prime is 327993089. The next prime is 327993139. The reversal of 327993131 is 131399723.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-327993131 is a prime.

It is a super-2 number, since 2×327993131² = 215158987966366322, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (327993139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163996565 + 163996566.

It is an arithmetic number, because the mean of its divisors is an integer number (163996566).

Almost surely, 2^327993131 is an apocalyptic number.

327993131 is a deficient number, since it is larger than the sum of its proper divisors (1).

327993131 is an equidigital number, since it uses as much as digits as its factorization.

327993131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 38.

The square root of 327993131 is about 18110.5806367438. The cubic root of 327993131 is about 689.6386338551.

The spelling of 327993131 in words is "three hundred twenty-seven million, nine hundred ninety-three thousand, one hundred thirty-one".