47475171 has 12 divisors (see below), whose sum is σ = 70248360. Its totient is φ = 30877920.

The previous prime is 47475161. The next prime is 47475173. The reversal of 47475171 is 17157474.

It is not a de Polignac number, because 47475171 - 2¹¹ = 47473123 is a prime.

It is a super-2 number, since 2×47475171² = 4507783722958482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47475173) 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, 63961 + ... + 64698.

It is an arithmetic number, because the mean of its divisors is an integer number (5854030).

Almost surely, 2^47475171 is an apocalyptic number.

47475171 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

47475171 is a deficient number, since it is larger than the sum of its proper divisors (22773189).

47475171 is a wasteful number, since it uses less digits than its factorization.

47475171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128706 (or 128703 counting only the distinct ones).

The product of its digits is 27440, while the sum is 36.

The square root of 47475171 is about 6890.2228556121. Note that the first 3 decimals coincide. The cubic root of 47475171 is about 362.0947093035.

The spelling of 47475171 in words is "forty-seven million, four hundred seventy-five thousand, one hundred seventy-one".