539776691 has 2 divisors, whose sum is σ = 539776692. Its totient is φ = 539776690.

The previous prime is 539776687. The next prime is 539776703. The reversal of 539776691 is 196677935.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 539776691 - 2² = 539776687 is a prime.

It is a super-2 number, since 2×539776691² = 582717752293818962, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (539776621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269888345 + 269888346.

It is an arithmetic number, because the mean of its divisors is an integer number (269888346).

Almost surely, 2^539776691 is an apocalyptic number.

539776691 is a deficient number, since it is larger than the sum of its proper divisors (1).

539776691 is an equidigital number, since it uses as much as digits as its factorization.

539776691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2143260, while the sum is 53.

The square root of 539776691 is about 23233.0947357428. The cubic root of 539776691 is about 814.2130187825.

The spelling of 539776691 in words is "five hundred thirty-nine million, seven hundred seventy-six thousand, six hundred ninety-one".