6631844 has 12 divisors (see below), whose sum is σ = 11645004. Its totient is φ = 3304704.

The previous prime is 6631789. The next prime is 6631871. The reversal of 6631844 is 4481366.

It can be written as a sum of positive squares in 2 ways, for example, as 2137444 + 4494400 = 1462^2 + 2120^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 6631844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397 + ... + 3900.

It is an arithmetic number, because the mean of its divisors is an integer number (970417).

Almost surely, 2^6631844 is an apocalyptic number.

It is an amenable number.

6631844 is a deficient number, since it is larger than the sum of its proper divisors (5013160).

6631844 is a wasteful number, since it uses less digits than its factorization.

6631844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5614 (or 5612 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 6631844 is about 2575.2366881512. The cubic root of 6631844 is about 187.8789397165.

The spelling of 6631844 in words is "six million, six hundred thirty-one thousand, eight hundred forty-four".