6648671 has 4 divisors (see below), whose sum is σ = 6717312. Its totient is φ = 6580032.

The previous prime is 6648661. The next prime is 6648701. The reversal of 6648671 is 1768466.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6648671 - 2¹⁰ = 6647647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6648661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34175 + ... + 34368.

It is an arithmetic number, because the mean of its divisors is an integer number (1679328).

Almost surely, 2^6648671 is an apocalyptic number.

6648671 is a deficient number, since it is larger than the sum of its proper divisors (68641).

6648671 is an equidigital number, since it uses as much as digits as its factorization.

6648671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68640.

The product of its digits is 48384, while the sum is 38.

The square root of 6648671 is about 2578.5016967223. The cubic root of 6648671 is about 188.0377074659.

The spelling of 6648671 in words is "six million, six hundred forty-eight thousand, six hundred seventy-one".