47170 has 16 divisors (see below), whose sum is σ = 87480. Its totient is φ = 18304.

The previous prime is 47161. The next prime is 47189. The reversal of 47170 is 7174.

It can be written as a sum of positive squares in 4 ways, for example, as 35721 + 11449 = 189^2 + 107^2 .

It is a plaindrome in base 12.

It is a nialpdrome in base 16.

It is an unprimeable number.

47170 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486 + ... + 574.

2⁴⁷¹⁷⁰ is an apocalyptic number.

47170 is a deficient number, since it is larger than the sum of its proper divisors (40310).

47170 is a wasteful number, since it uses less digits than its factorization.

47170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149.

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 47170 is about 217.1865557533. The cubic root of 47170 is about 36.1317191159.

It can be divided in two parts, 4 and 7170, that multiplied together give a triangular number (28680 = T₂₃₉).

The spelling of 47170 in words is "forty-seven thousand, one hundred seventy", and thus it is an iban number.