6685311 has 4 divisors (see below), whose sum is σ = 8913752. Its totient is φ = 4456872.

The previous prime is 6685307. The next prime is 6685331. The reversal of 6685311 is 1135866.

6685311 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6685311 - 2² = 6685307 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6685331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1114216 + ... + 1114221.

It is an arithmetic number, because the mean of its divisors is an integer number (2228438).

Almost surely, 2^6685311 is an apocalyptic number.

6685311 is a deficient number, since it is larger than the sum of its proper divisors (2228441).

6685311 is a wasteful number, since it uses less digits than its factorization.

6685311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228440.

The product of its digits is 4320, while the sum is 30.

The square root of 6685311 is about 2585.5968363223. The cubic root of 6685311 is about 188.3824923665.

It can be divided in two parts, 6685 and 311, that added together give a palindrome (6996).

The spelling of 6685311 in words is "six million, six hundred eighty-five thousand, three hundred eleven".