539809769 has 2 divisors, whose sum is σ = 539809770. Its totient is φ = 539809768.

The previous prime is 539809693. The next prime is 539809783. The reversal of 539809769 is 967908935.

539809769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 536154025 + 3655744 = 23155^2 + 1912^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-539809769 is a prime.

It is a super-2 number, since 2×539809769² = 582789173415666722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (539809469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269904884 + 269904885.

It is an arithmetic number, because the mean of its divisors is an integer number (269904885).

Almost surely, 2^539809769 is an apocalyptic number.

It is an amenable number.

539809769 is a deficient number, since it is larger than the sum of its proper divisors (1).

539809769 is an equidigital number, since it uses as much as digits as its factorization.

539809769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3674160, while the sum is 56.

The square root of 539809769 is about 23233.8065972841. The cubic root of 539809769 is about 814.2296503443.

The spelling of 539809769 in words is "five hundred thirty-nine million, eight hundred nine thousand, seven hundred sixty-nine".