826172 has 6 divisors (see below), whose sum is σ = 1445808. Its totient is φ = 413084.

The previous prime is 826171. The next prime is 826193. The reversal of 826172 is 271628.

It is a d-powerful number, because it can be written as 8³ + 2⁵ + 1 + 6² + 7⁷ + 2¹¹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (826171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103268 + ... + 103275.

It is an arithmetic number, because the mean of its divisors is an integer number (240968).

2⁸²⁶¹⁷² is an apocalyptic number.

It is an amenable number.

826172 is a deficient number, since it is larger than the sum of its proper divisors (619636).

826172 is a wasteful number, since it uses less digits than its factorization.

826172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206547 (or 206545 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 826172 is about 908.9400420270. The cubic root of 826172 is about 93.8332641011.

The spelling of 826172 in words is "eight hundred twenty-six thousand, one hundred seventy-two".