538812047 has 2 divisors, whose sum is σ = 538812048. Its totient is φ = 538812046.

The previous prime is 538811981. The next prime is 538812049. The reversal of 538812047 is 740218835.

538812047 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538812047 is a prime.

Together with 538812049, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 538812047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538812049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269406023 + 269406024.

It is an arithmetic number, because the mean of its divisors is an integer number (269406024).

Almost surely, 2^538812047 is an apocalyptic number.

538812047 is a deficient number, since it is larger than the sum of its proper divisors (1).

538812047 is an equidigital number, since it uses as much as digits as its factorization.

538812047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 538812047 is about 23212.3253251371. The cubic root of 538812047 is about 813.7276983010.

The spelling of 538812047 in words is "five hundred thirty-eight million, eight hundred twelve thousand, forty-seven".