47520171 has 12 divisors (see below), whose sum is σ = 69936048. Its totient is φ = 31082064.

The previous prime is 47520169. The next prime is 47520211. The reversal of 47520171 is 17102574.

47520171 is a `hidden beast` number, since 475 + 20 + 171 = 666.

It is not a de Polignac number, because 47520171 - 2¹ = 47520169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47520101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49335 + ... + 50288.

It is an arithmetic number, because the mean of its divisors is an integer number (5828004).

Almost surely, 2^47520171 is an apocalyptic number.

47520171 is a deficient number, since it is larger than the sum of its proper divisors (22415877).

47520171 is a wasteful number, since it uses less digits than its factorization.

47520171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99682 (or 99679 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 47520171 is about 6893.4875788675. The cubic root of 47520171 is about 362.2090786748.

The spelling of 47520171 in words is "forty-seven million, five hundred twenty thousand, one hundred seventy-one".