540821683 has 2 divisors, whose sum is σ = 540821684. Its totient is φ = 540821682.

The previous prime is 540821647. The next prime is 540821713. The reversal of 540821683 is 386128045.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 540821683 - 2¹⁷ = 540690611 is a prime.

It is not a weakly prime, because it can be changed into another prime (540821383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270410841 + 270410842.

It is an arithmetic number, because the mean of its divisors is an integer number (270410842).

Almost surely, 2^540821683 is an apocalyptic number.

540821683 is a deficient number, since it is larger than the sum of its proper divisors (1).

540821683 is an equidigital number, since it uses as much as digits as its factorization.

540821683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 540821683 is about 23255.5731599976. The cubic root of 540821683 is about 814.7381109943.

The spelling of 540821683 in words is "five hundred forty million, eight hundred twenty-one thousand, six hundred eighty-three".