6503648 has 24 divisors (see below), whose sum is σ = 12891312. Its totient is φ = 3229696.

The previous prime is 6503647. The next prime is 6503663. The reversal of 6503648 is 8463056.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6503647) 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 3 ways as a sum of consecutive naturals, for example, 4736 + ... + 5952.

It is an arithmetic number, because the mean of its divisors is an integer number (537138).

Almost surely, 2^6503648 is an apocalyptic number.

It is an amenable number.

6503648 is a deficient number, since it is larger than the sum of its proper divisors (6387664).

6503648 is a wasteful number, since it uses less digits than its factorization.

6503648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394 (or 1386 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 6503648 is about 2550.2250881050. The cubic root of 6503648 is about 186.6604646465.

The spelling of 6503648 in words is "six million, five hundred three thousand, six hundred forty-eight".