6648471 has 12 divisors (see below), whose sum is σ = 9627072. Its totient is φ = 4421376.

The previous prime is 6648457. The next prime is 6648487. The reversal of 6648471 is 1748466.

6648471 is a `hidden beast` number, since 6 + 648 + 4 + 7 + 1 = 666.

It is not a de Polignac number, because 6648471 - 2⁶ = 6648407 is a prime.

It is a super-3 number, since 3×6648471³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6648401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4855 + ... + 6071.

It is an arithmetic number, because the mean of its divisors is an integer number (802256).

Almost surely, 2^6648471 is an apocalyptic number.

6648471 is a deficient number, since it is larger than the sum of its proper divisors (2978601).

6648471 is a wasteful number, since it uses less digits than its factorization.

6648471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830 (or 1827 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 6648471 is about 2578.4629142185. The cubic root of 6648471 is about 188.0358219804.

The spelling of 6648471 in words is "six million, six hundred forty-eight thousand, four hundred seventy-one".