828171 has 16 divisors (see below), whose sum is σ = 1261600. Its totient is φ = 536544.

The previous prime is 828169. The next prime is 828199. The reversal of 828171 is 171828.

It is not a de Polignac number, because 828171 - 2¹ = 828169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (828101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 585 + ... + 1413.

It is an arithmetic number, because the mean of its divisors is an integer number (78850).

2⁸²⁸¹⁷¹ is an apocalyptic number.

828171 is a deficient number, since it is larger than the sum of its proper divisors (433429).

828171 is a wasteful number, since it uses less digits than its factorization.

828171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875 (or 869 counting only the distinct ones).

The product of its digits is 896, while the sum is 27.

The square root of 828171 is about 910.0390101529. The cubic root of 828171 is about 93.9088825820.

Adding to 828171 its reverse (171828), we get a palindrome (999999).

It can be divided in two parts, 828 and 171, that added together give a palindrome (999).

The spelling of 828171 in words is "eight hundred twenty-eight thousand, one hundred seventy-one".