531047327 has 2 divisors, whose sum is σ = 531047328. Its totient is φ = 531047326.

The previous prime is 531047323. The next prime is 531047351. The reversal of 531047327 is 723740135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531047327 - 2² = 531047323 is a prime.

It is a super-2 number, since 2×531047327² = 564022527027689858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 531047293 and 531047302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531047323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265523663 + 265523664.

It is an arithmetic number, because the mean of its divisors is an integer number (265523664).

Almost surely, 2^531047327 is an apocalyptic number.

531047327 is a deficient number, since it is larger than the sum of its proper divisors (1).

531047327 is an equidigital number, since it uses as much as digits as its factorization.

531047327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 531047327 is about 23044.4641291569. The cubic root of 531047327 is about 809.7999439890.

The spelling of 531047327 in words is "five hundred thirty-one million, forty-seven thousand, three hundred twenty-seven".