6685471 has 16 divisors (see below), whose sum is σ = 7711200. Its totient is φ = 5775744.

The previous prime is 6685447. The next prime is 6685477. The reversal of 6685471 is 1745866.

6685471 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6685471 - 2⁹ = 6684959 is a prime.

It is a super-3 number, since 3×6685471³ (a number of 21 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 6685471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6685477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37260 + ... + 37438.

It is an arithmetic number, because the mean of its divisors is an integer number (481950).

Almost surely, 2^6685471 is an apocalyptic number.

6685471 is a deficient number, since it is larger than the sum of its proper divisors (1025729).

6685471 is a wasteful number, since it uses less digits than its factorization.

6685471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 209 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 6685471 is about 2585.6277767691. The cubic root of 6685471 is about 188.3839952115.

The spelling of 6685471 in words is "six million, six hundred eighty-five thousand, four hundred seventy-one".