6486844 has 48 divisors (see below), whose sum is σ = 14224896. Its totient is φ = 2520000.

The previous prime is 6486841. The next prime is 6486869. The reversal of 6486844 is 4486846.

It is a junction number, because it is equal to n+sod(n) for n = 6486797 and 6486806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6486841) 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, 25719 + ... + 25969.

It is an arithmetic number, because the mean of its divisors is an integer number (296352).

Almost surely, 2^6486844 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 6486844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7112448).

6486844 is an abundant number, since it is smaller than the sum of its proper divisors (7738052).

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

6486844 is a wasteful number, since it uses less digits than its factorization.

6486844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 344 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The square root of 6486844 is about 2546.9283460671. The cubic root of 6486844 is about 186.4995627549.

The spelling of 6486844 in words is "six million, four hundred eighty-six thousand, eight hundred forty-four".