6685872 has 40 divisors (see below), whose sum is σ = 18183360. Its totient is φ = 2111040.

The previous prime is 6685867. The next prime is 6685907. The reversal of 6685872 is 2785866.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2754 + ... + 4577.

It is an arithmetic number, because the mean of its divisors is an integer number (454584).

Almost surely, 2^6685872 is an apocalyptic number.

It is an amenable number.

6685872 is an abundant number, since it is smaller than the sum of its proper divisors (11497488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6685872 is a wasteful number, since it uses less digits than its factorization.

6685872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7361 (or 7355 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 6685872 is about 2585.7053196372. The cubic root of 6685872 is about 188.3877616114.

It can be divided in two parts, 6685 and 872, that added together give a palindrome (7557).

The spelling of 6685872 in words is "six million, six hundred eighty-five thousand, eight hundred seventy-two".