47205871 has 2 divisors, whose sum is σ = 47205872. Its totient is φ = 47205870.

The previous prime is 47205869. The next prime is 47205911. The reversal of 47205871 is 17850274.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47205871 - 2¹ = 47205869 is a prime.

Together with 47205869, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47206871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23602935 + 23602936.

It is an arithmetic number, because the mean of its divisors is an integer number (23602936).

Almost surely, 2^47205871 is an apocalyptic number.

47205871 is a deficient number, since it is larger than the sum of its proper divisors (1).

47205871 is an equidigital number, since it uses as much as digits as its factorization.

47205871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 47205871 is about 6870.6528801854. The cubic root of 47205871 is about 361.4087573027.

The spelling of 47205871 in words is "forty-seven million, two hundred five thousand, eight hundred seventy-one".