538707647 has 2 divisors, whose sum is σ = 538707648. Its totient is φ = 538707646.

The previous prime is 538707607. The next prime is 538707649. The reversal of 538707647 is 746707835.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 538707647 - 2⁸ = 538707391 is a prime.

Together with 538707649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538707649) 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, 269353823 + 269353824.

It is an arithmetic number, because the mean of its divisors is an integer number (269353824).

Almost surely, 2^538707647 is an apocalyptic number.

538707647 is a deficient number, since it is larger than the sum of its proper divisors (1).

538707647 is an equidigital number, since it uses as much as digits as its factorization.

538707647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 987840, while the sum is 47.

The square root of 538707647 is about 23210.0764109040. The cubic root of 538707647 is about 813.6751390584.

The spelling of 538707647 in words is "five hundred thirty-eight million, seven hundred seven thousand, six hundred forty-seven".