47271971 has 2 divisors, whose sum is σ = 47271972. Its totient is φ = 47271970.

The previous prime is 47271949. The next prime is 47271979. The reversal of 47271971 is 17917274.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47271971 - 2⁶ = 47271907 is a prime.

It is not a weakly prime, because it can be changed into another prime (47271979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23635985 + 23635986.

It is an arithmetic number, because the mean of its divisors is an integer number (23635986).

Almost surely, 2^47271971 is an apocalyptic number.

47271971 is a deficient number, since it is larger than the sum of its proper divisors (1).

47271971 is an equidigital number, since it uses as much as digits as its factorization.

47271971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24696, while the sum is 38.

The square root of 47271971 is about 6875.4615117823. The cubic root of 47271971 is about 361.5773661132.

The spelling of 47271971 in words is "forty-seven million, two hundred seventy-one thousand, nine hundred seventy-one".