539319691 has 2 divisors, whose sum is σ = 539319692. Its totient is φ = 539319690.

The previous prime is 539319673. The next prime is 539319707. The reversal of 539319691 is 196913935.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 539319691 - 2⁷ = 539319563 is a prime.

It is not a weakly prime, because it can be changed into another prime (539319601) 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, 269659845 + 269659846.

It is an arithmetic number, because the mean of its divisors is an integer number (269659846).

Almost surely, 2^539319691 is an apocalyptic number.

539319691 is a deficient number, since it is larger than the sum of its proper divisors (1).

539319691 is an equidigital number, since it uses as much as digits as its factorization.

539319691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 196830, while the sum is 46.

The square root of 539319691 is about 23223.2575449699. The cubic root of 539319691 is about 813.9831703926.

The spelling of 539319691 in words is "five hundred thirty-nine million, three hundred nineteen thousand, six hundred ninety-one".