47857671 has 6 divisors (see below), whose sum is σ = 69127760. Its totient is φ = 31905108.

The previous prime is 47857657. The next prime is 47857681. The reversal of 47857671 is 17675874.

47857671 is a `hidden beast` number, since 4 + 7 + 8 + 576 + 71 = 666.

It is not a de Polignac number, because 47857671 - 2⁵ = 47857639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47857681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2658751 + ... + 2658768.

Almost surely, 2^47857671 is an apocalyptic number.

47857671 is a deficient number, since it is larger than the sum of its proper divisors (21270089).

47857671 is a wasteful number, since it uses less digits than its factorization.

47857671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5317525 (or 5317522 counting only the distinct ones).

The product of its digits is 329280, while the sum is 45.

The square root of 47857671 is about 6917.9238937704. The cubic root of 47857671 is about 363.0645560573.

The spelling of 47857671 in words is "forty-seven million, eight hundred fifty-seven thousand, six hundred seventy-one".