539804819 has 2 divisors, whose sum is σ = 539804820. Its totient is φ = 539804818.

The previous prime is 539804789. The next prime is 539804821. The reversal of 539804819 is 918408935.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 539804819 - 2¹⁶ = 539739283 is a prime.

It is a super-2 number, since 2×539804819² = 582778485231245522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 539804821, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (539804879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269902409 + 269902410.

It is an arithmetic number, because the mean of its divisors is an integer number (269902410).

Almost surely, 2^539804819 is an apocalyptic number.

539804819 is a deficient number, since it is larger than the sum of its proper divisors (1).

539804819 is an equidigital number, since it uses as much as digits as its factorization.

539804819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 539804819 is about 23233.7000712327. The cubic root of 539804819 is about 814.2271615360.

The spelling of 539804819 in words is "five hundred thirty-nine million, eight hundred four thousand, eight hundred nineteen".