826845 has 16 divisors (see below), whose sum is σ = 1334400. Its totient is φ = 437184.

The previous prime is 826831. The next prime is 826849. The reversal of 826845 is 548628.

It is not a de Polignac number, because 826845 - 2⁷ = 826717 is a prime.

826845 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (826849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2847 + ... + 3123.

It is an arithmetic number, because the mean of its divisors is an integer number (83400).

2⁸²⁶⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

826845 is a deficient number, since it is larger than the sum of its proper divisors (507555).

826845 is a wasteful number, since it uses less digits than its factorization.

826845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484.

The product of its digits is 15360, while the sum is 33.

The square root of 826845 is about 909.3101781021. The cubic root of 826845 is about 93.8587360558.

The spelling of 826845 in words is "eight hundred twenty-six thousand, eight hundred forty-five".