538847971 has 2 divisors, whose sum is σ = 538847972. Its totient is φ = 538847970.

The previous prime is 538847951. The next prime is 538847987. The reversal of 538847971 is 179748835.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 538847971 - 2⁷ = 538847843 is a prime.

It is not a weakly prime, because it can be changed into another prime (538847941) 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, 269423985 + 269423986.

It is an arithmetic number, because the mean of its divisors is an integer number (269423986).

Almost surely, 2^538847971 is an apocalyptic number.

538847971 is a deficient number, since it is larger than the sum of its proper divisors (1).

538847971 is an equidigital number, since it uses as much as digits as its factorization.

538847971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 52.

The square root of 538847971 is about 23213.0991252784. The cubic root of 538847971 is about 813.7457823461.

The spelling of 538847971 in words is "five hundred thirty-eight million, eight hundred forty-seven thousand, nine hundred seventy-one".