6685499 has 2 divisors, whose sum is σ = 6685500. Its totient is φ = 6685498.

The previous prime is 6685489. The next prime is 6685507. The reversal of 6685499 is 9945866.

6685499 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6685499 - 2¹² = 6681403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6685409) 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 as a sum of consecutive naturals, namely, 3342749 + 3342750.

It is an arithmetic number, because the mean of its divisors is an integer number (3342750).

Almost surely, 2^6685499 is an apocalyptic number.

6685499 is a deficient number, since it is larger than the sum of its proper divisors (1).

6685499 is an equidigital number, since it uses as much as digits as its factorization.

6685499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 47.

The square root of 6685499 is about 2585.6331913092. The cubic root of 6685499 is about 188.3842582069.

The spelling of 6685499 in words is "six million, six hundred eighty-five thousand, four hundred ninety-nine".