6643848 has 16 divisors (see below), whose sum is σ = 16609680. Its totient is φ = 2214608.

The previous prime is 6643843. The next prime is 6643859. The reversal of 6643848 is 8483466.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (6643843) 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, 138390 + ... + 138437.

It is an arithmetic number, because the mean of its divisors is an integer number (1038105).

Almost surely, 2^6643848 is an apocalyptic number.

It is an amenable number.

6643848 is an abundant number, since it is smaller than the sum of its proper divisors (9965832).

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

6643848 is a wasteful number, since it uses less digits than its factorization.

6643848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276836 (or 276832 counting only the distinct ones).

The product of its digits is 110592, while the sum is 39.

The square root of 6643848 is about 2577.5662940068. The cubic root of 6643848 is about 187.9922284399.

The spelling of 6643848 in words is "six million, six hundred forty-three thousand, eight hundred forty-eight".