827423543 has 2 divisors, whose sum is σ = 827423544. Its totient is φ = 827423542.

The previous prime is 827423521. The next prime is 827423593. The reversal of 827423543 is 345324728.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 827423543 - 2⁶ = 827423479 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 827423497 and 827423506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (827423593) 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 as a sum of consecutive naturals, namely, 413711771 + 413711772.

It is an arithmetic number, because the mean of its divisors is an integer number (413711772).

Almost surely, 2^827423543 is an apocalyptic number.

827423543 is a deficient number, since it is larger than the sum of its proper divisors (1).

827423543 is an equidigital number, since it uses as much as digits as its factorization.

827423543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 38.

The square root of 827423543 is about 28764.9707630653. The cubic root of 827423543 is about 938.8062192107.

The spelling of 827423543 in words is "eight hundred twenty-seven million, four hundred twenty-three thousand, five hundred forty-three".