404171 has 4 divisors (see below), whose sum is σ = 405600. Its totient is φ = 402744.

The previous prime is 404167. The next prime is 404177. The reversal of 404171 is 171404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404171 - 2² = 404167 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404177) 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, 131 + ... + 908.

It is an arithmetic number, because the mean of its divisors is an integer number (101400).

2⁴⁰⁴¹⁷¹ is an apocalyptic number.

404171 is a deficient number, since it is larger than the sum of its proper divisors (1429).

404171 is a wasteful number, since it uses less digits than its factorization.

404171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 404171 is about 635.7444455125. The cubic root of 404171 is about 73.9358465173.

Adding to 404171 its reverse (171404), we get a palindrome (575575).

It can be divided in two parts, 404 and 171, that added together give a palindrome (575).

The spelling of 404171 in words is "four hundred four thousand, one hundred seventy-one", and thus it is an iban number.