6685413 has 32 divisors (see below), whose sum is σ = 10656000. Its totient is φ = 3725568.

The previous prime is 6685409. The next prime is 6685447. The reversal of 6685413 is 3145866.

It is not a de Polignac number, because 6685413 - 2² = 6685409 is a prime.

6685413 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6685013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75073 + ... + 75161.

It is an arithmetic number, because the mean of its divisors is an integer number (333000).

Almost surely, 2^6685413 is an apocalyptic number.

It is an amenable number.

6685413 is a deficient number, since it is larger than the sum of its proper divisors (3970587).

6685413 is an equidigital number, since it uses as much as digits as its factorization.

6685413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 172 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 6685413 is about 2585.6165608999. The cubic root of 6685413 is about 188.3834504330.

The spelling of 6685413 in words is "six million, six hundred eighty-five thousand, four hundred thirteen".