6718648 has 8 divisors (see below), whose sum is σ = 12597480. Its totient is φ = 3359320.

The previous prime is 6718589. The next prime is 6718667. The reversal of 6718648 is 8468176.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 6718648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419908 + ... + 419923.

It is an arithmetic number, because the mean of its divisors is an integer number (1574685).

Almost surely, 2^6718648 is an apocalyptic number.

It is an amenable number.

6718648 is a deficient number, since it is larger than the sum of its proper divisors (5878832).

6718648 is a wasteful number, since it uses less digits than its factorization.

6718648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839837 (or 839833 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 6718648 is about 2592.0354935841. The cubic root of 6718648 is about 188.6951029625.

The spelling of 6718648 in words is "six million, seven hundred eighteen thousand, six hundred forty-eight".