6648331 has 2 divisors, whose sum is σ = 6648332. Its totient is φ = 6648330.

The previous prime is 6648307. The next prime is 6648371. The reversal of 6648331 is 1338466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6648331 - 2⁷ = 6648203 is a prime.

It is a super-2 number, since 2×6648331² = 88400610171122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6648293 and 6648302.

It is not a weakly prime, because it can be changed into another prime (6648371) 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, 3324165 + 3324166.

It is an arithmetic number, because the mean of its divisors is an integer number (3324166).

Almost surely, 2^6648331 is an apocalyptic number.

6648331 is a deficient number, since it is larger than the sum of its proper divisors (1).

6648331 is an equidigital number, since it uses as much as digits as its factorization.

6648331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 6648331 is about 2578.4357661187. The cubic root of 6648331 is about 188.0345021180.

The spelling of 6648331 in words is "six million, six hundred forty-eight thousand, three hundred thirty-one".