47712171 has 16 divisors (see below), whose sum is σ = 68685344. Its totient is φ = 29286144.

The previous prime is 47712157. The next prime is 47712199. The reversal of 47712171 is 17121774.

47712171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47712171 - 2¹⁴ = 47695787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47712571) 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 in 15 ways as a sum of consecutive naturals, for example, 16485 + ... + 19161.

It is an arithmetic number, because the mean of its divisors is an integer number (4292834).

Almost surely, 2^47712171 is an apocalyptic number.

47712171 is a deficient number, since it is larger than the sum of its proper divisors (20973173).

47712171 is a wasteful number, since it uses less digits than its factorization.

47712171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150.

The product of its digits is 2744, while the sum is 30.

The square root of 47712171 is about 6907.3997278281. The cubic root of 47712171 is about 362.6962450683.

The spelling of 47712171 in words is "forty-seven million, seven hundred twelve thousand, one hundred seventy-one".