6387648 has 112 divisors (see below), whose sum is σ = 19019520. Its totient is φ = 1880064.

The previous prime is 6387637. The next prime is 6387649. The reversal of 6387648 is 8467836.

Its product of digits (193536) is a multiple of the sum of its prime divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6387649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61965 + ... + 62067.

Almost surely, 2^6387648 is an apocalyptic number.

6387648 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6387648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9509760).

6387648 is an abundant number, since it is smaller than the sum of its proper divisors (12631872).

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

6387648 is a wasteful number, since it uses less digits than its factorization.

6387648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 144 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 6387648 is about 2527.3796707262. The cubic root of 6387648 is about 185.5440328673.

The spelling of 6387648 in words is "six million, three hundred eighty-seven thousand, six hundred forty-eight".