6704643671 has 16 divisors (see below), whose sum is σ = 7575026688. Its totient is φ = 5881394400.

The previous prime is 6704643643. The next prime is 6704643691. The reversal of 6704643671 is 1763464076.

It is a cyclic number.

It is not a de Polignac number, because 6704643671 - 2¹⁴ = 6704627287 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 (6704643691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54620 + ... + 128033.

It is an arithmetic number, because the mean of its divisors is an integer number (473439168).

Almost surely, 2^6704643671 is an apocalyptic number.

6704643671 is a deficient number, since it is larger than the sum of its proper divisors (870383017).

6704643671 is a wasteful number, since it uses less digits than its factorization.

6704643671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182782.

The product of its (nonzero) digits is 508032, while the sum is 44.

The square root of 6704643671 is about 81881.8885407512. Note that the first 3 decimals coincide. The cubic root of 6704643671 is about 1885.6390660322.

The spelling of 6704643671 in words is "six billion, seven hundred four million, six hundred forty-three thousand, six hundred seventy-one".