7826844 has 12 divisors (see below), whose sum is σ = 18262664. Its totient is φ = 2608944.

The previous prime is 7826843. The next prime is 7826887. The reversal of 7826844 is 4486287.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×7826844² = 122518974000672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7826843) 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, 326107 + ... + 326130.

Almost surely, 2^7826844 is an apocalyptic number.

It is an amenable number.

7826844 is an abundant number, since it is smaller than the sum of its proper divisors (10435820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7826844 is a wasteful number, since it uses less digits than its factorization.

7826844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652244 (or 652242 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 7826844 is about 2797.6497278966. The cubic root of 7826844 is about 198.5464955472.

It can be divided in two parts, 782 and 6844, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 7826844 in words is "seven million, eight hundred twenty-six thousand, eight hundred forty-four".