6780448 has 12 divisors (see below), whose sum is σ = 13349070. Its totient is φ = 3390208.

The previous prime is 6780443. The next prime is 6780463. The reversal of 6780448 is 8440876.

It can be written as a sum of positive squares in only one way, i.e., 3640464 + 3139984 = 1908^2 + 1772^2 .

It is not an unprimeable number, because it can be changed into a prime (6780443) 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 as a sum of consecutive naturals, namely, 105913 + ... + 105976.

Almost surely, 2^6780448 is an apocalyptic number.

It is an amenable number.

6780448 is a deficient number, since it is larger than the sum of its proper divisors (6568622).

6780448 is a wasteful number, since it uses less digits than its factorization.

6780448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211899 (or 211891 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 6780448 is about 2603.9293385190. The cubic root of 6780448 is about 189.2718948089.

The spelling of 6780448 in words is "six million, seven hundred eighty thousand, four hundred forty-eight".