6923844 has 36 divisors (see below), whose sum is σ = 17706780. Its totient is φ = 2280960.

The previous prime is 6923821. The next prime is 6923869. The reversal of 6923844 is 4483296.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2762244 + 4161600 = 1662^2 + 2040^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 6⁸ + 9² + 2⁹ + 3⁵ + 8³ + 4¹⁰ + 4¹¹ .

It is a junction number, because it is equal to n+sod(n) for n = 6923799 and 6923808.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2124 + ... + 4284.

It is an arithmetic number, because the mean of its divisors is an integer number (491855).

Almost surely, 2^6923844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6923844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8853390).

6923844 is an abundant number, since it is smaller than the sum of its proper divisors (10782936).

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

6923844 is a wasteful number, since it uses less digits than its factorization.

6923844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260 (or 2255 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 6923844 is about 2631.3198209264. The cubic root of 6923844 is about 190.5968672628.

The spelling of 6923844 in words is "six million, nine hundred twenty-three thousand, eight hundred forty-four".