47931071 has 2 divisors, whose sum is σ = 47931072. Its totient is φ = 47931070.

The previous prime is 47931061. The next prime is 47931077. The reversal of 47931071 is 17013974.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47931071 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47931077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23965535 + 23965536.

It is an arithmetic number, because the mean of its divisors is an integer number (23965536).

Almost surely, 2^47931071 is an apocalyptic number.

47931071 is a deficient number, since it is larger than the sum of its proper divisors (1).

47931071 is an equidigital number, since it uses as much as digits as its factorization.

47931071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 47931071 is about 6923.2269210246. The cubic root of 47931071 is about 363.2500736939.

The spelling of 47931071 in words is "forty-seven million, nine hundred thirty-one thousand, seventy-one".