47471871 has 16 divisors (see below), whose sum is σ = 68580864. Its totient is φ = 29092224.

The previous prime is 47471863. The next prime is 47471887. The reversal of 47471871 is 17817474.

It is not a de Polignac number, because 47471871 - 2³ = 47471863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47471821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8631 + ... + 13016.

It is an arithmetic number, because the mean of its divisors is an integer number (4286304).

Almost surely, 2^47471871 is an apocalyptic number.

47471871 is a deficient number, since it is larger than the sum of its proper divisors (21108993).

47471871 is a wasteful number, since it uses less digits than its factorization.

47471871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21710.

The product of its digits is 43904, while the sum is 39.

The square root of 47471871 is about 6889.9833816926. The cubic root of 47471871 is about 362.0863193725.

The spelling of 47471871 in words is "forty-seven million, four hundred seventy-one thousand, eight hundred seventy-one".