172471 has 4 divisors (see below), whose sum is σ = 185752. Its totient is φ = 159192.

The previous prime is 172441. The next prime is 172489. The reversal of 172471 is 174271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174271 = 23 ⋅7577.

It is a cyclic number.

It is not a de Polignac number, because 172471 - 2⁵ = 172439 is a prime.

It is a super-3 number, since 3×172471³ = 15391094299329333, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6621 + ... + 6646.

It is an arithmetic number, because the mean of its divisors is an integer number (46438).

2¹⁷²⁴⁷¹ is an apocalyptic number.

172471 is a deficient number, since it is larger than the sum of its proper divisors (13281).

172471 is a wasteful number, since it uses less digits than its factorization.

172471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13280.

The product of its digits is 392, while the sum is 22.

The square root of 172471 is about 415.2962797811. The cubic root of 172471 is about 55.6636944083.

The spelling of 172471 in words is "one hundred seventy-two thousand, four hundred seventy-one", and thus it is an iban number.