6466671 has 12 divisors (see below), whose sum is σ = 9494680. Its totient is φ = 4240080.

The previous prime is 6466661. The next prime is 6466679. The reversal of 6466671 is 1766646.

It is not a de Polignac number, because 6466671 - 2⁷ = 6466543 is a prime.

It is a Duffinian number.

6466671 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466679) 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, 5341 + ... + 6438.

Almost surely, 2^6466671 is an apocalyptic number.

6466671 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

6466671 is a deficient number, since it is larger than the sum of its proper divisors (3028009).

6466671 is a wasteful number, since it uses less digits than its factorization.

6466671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11846 (or 11843 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 6466671 is about 2542.9650017253. The cubic root of 6466671 is about 186.3060345190.

The spelling of 6466671 in words is "six million, four hundred sixty-six thousand, six hundred seventy-one".