6648064 has 18 divisors (see below), whose sum is σ = 13270670. Its totient is φ = 3323904.

The previous prime is 6648053. The next prime is 6648067. The reversal of 6648064 is 4608466.

It can be written as a sum of positive squares in only one way, i.e., 4665600 + 1982464 = 2160^2 + 1408^2 .

It is not an unprimeable number, because it can be changed into a prime (6648067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12729 + ... + 13240.

Almost surely, 2^6648064 is an apocalyptic number.

6648064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6648064 is a deficient number, since it is larger than the sum of its proper divisors (6622606).

6648064 is an equidigital number, since it uses as much as digits as its factorization.

6648064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25985 (or 25971 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 6648064 is about 2578.3839900217. The cubic root of 6648064 is about 188.0319849006.

The spelling of 6648064 in words is "six million, six hundred forty-eight thousand, sixty-four".