6685331 has 2 divisors, whose sum is σ = 6685332. Its totient is φ = 6685330.

The previous prime is 6685307. The next prime is 6685351. The reversal of 6685331 is 1335866.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6685331 is a prime.

It is a super-2 number, since 2×6685331² = 89387301159122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6685351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3342665 + 3342666.

It is an arithmetic number, because the mean of its divisors is an integer number (3342666).

Almost surely, 2^6685331 is an apocalyptic number.

6685331 is a deficient number, since it is larger than the sum of its proper divisors (1).

6685331 is an equidigital number, since it uses as much as digits as its factorization.

6685331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 6685331 is about 2585.6007038984. The cubic root of 6685331 is about 188.3826802235.

The spelling of 6685331 in words is "six million, six hundred eighty-five thousand, three hundred thirty-one".