6648001 has 2 divisors, whose sum is σ = 6648002. Its totient is φ = 6648000.

The previous prime is 6647987. The next prime is 6648007. The reversal of 6648001 is 1008466.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5880625 + 767376 = 2425^2 + 876^2 .

It is a cyclic number.

It is not a de Polignac number, because 6648001 - 2⁹ = 6647489 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (6648007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3324000 + 3324001.

It is an arithmetic number, because the mean of its divisors is an integer number (3324001).

Almost surely, 2^6648001 is an apocalyptic number.

It is an amenable number.

6648001 is a deficient number, since it is larger than the sum of its proper divisors (1).

6648001 is an equidigital number, since it uses as much as digits as its factorization.

6648001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 6648001 is about 2578.3717730382. The cubic root of 6648001 is about 188.0313909406.

The spelling of 6648001 in words is "six million, six hundred forty-eight thousand, one".