82173826 has 32 divisors (see below), whose sum is σ = 143585280. Its totient is φ = 34546176.

The previous prime is 82173821. The next prime is 82173827. The reversal of 82173826 is 62837128.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a cake number, because a cake can be divided into 82173826 parts by 790 planar cuts.

It is not an unprimeable number, because it can be changed into a prime (82173821) 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, 200710 + ... + 201118.

It is an arithmetic number, because the mean of its divisors is an integer number (4487040).

Almost surely, 2^82173826 is an apocalyptic number.

82173826 is a deficient number, since it is larger than the sum of its proper divisors (61411454).

82173826 is a wasteful number, since it uses less digits than its factorization.

82173826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658.

The product of its digits is 32256, while the sum is 37.

The square root of 82173826 is about 9064.9779922513. The cubic root of 82173826 is about 434.7549172135.

It can be divided in two parts, 821 and 73826, that added together give a palindrome (74647).

The spelling of 82173826 in words is "eighty-two million, one hundred seventy-three thousand, eight hundred twenty-six".