6685320 has 32 divisors (see below), whose sum is σ = 20056320. Its totient is φ = 1782720.

The previous prime is 6685307. The next prime is 6685331. The reversal of 6685320 is 235866.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27736 + ... + 27975.

It is an arithmetic number, because the mean of its divisors is an integer number (626760).

Almost surely, 2^6685320 is an apocalyptic number.

6685320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6685320 is an abundant number, since it is smaller than the sum of its proper divisors (13371000).

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

6685320 is a wasteful number, since it uses less digits than its factorization.

6685320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55725 (or 55721 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 6685320 is about 2585.5985767323. The cubic root of 6685320 is about 188.3825769022.

The spelling of 6685320 in words is "six million, six hundred eighty-five thousand, three hundred twenty".