6471 has 6 divisors (see below), whose sum is σ = 9360. Its totient is φ = 4308.

The previous prime is 6469. The next prime is 6473. The reversal of 6471 is 1746.

It is an interprime number because it is at equal distance from previous prime (6469) and next prime (6473).

It is not a de Polignac number, because 6471 - 2¹ = 6469 is a prime.

It is a super-3 number, since 3×6471³ = 812896875333, which contains 333 as substring.

6471 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 351 + ... + 368.

It is an arithmetic number, because the mean of its divisors is an integer number (1560).

2⁶⁴⁷¹ is an apocalyptic number.

6471 is a deficient number, since it is larger than the sum of its proper divisors (2889).

6471 is a wasteful number, since it uses less digits than its factorization.

6471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725 (or 722 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 6471 is about 80.4425260668. The cubic root of 6471 is about 18.6347598353.

The spelling of 6471 in words is "six thousand, four hundred seventy-one".