6680680 has 16 divisors (see below), whose sum is σ = 15031620. Its totient is φ = 2672256.

The previous prime is 6680657. The next prime is 6680689. The reversal of 6680680 is 860866.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6646084 + 34596 = 2578^2 + 186^2 .

It is not an unprimeable number, because it can be changed into a prime (6680689) 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 in 3 ways as a sum of consecutive naturals, for example, 83469 + ... + 83548.

Almost surely, 2^6680680 is an apocalyptic number.

It is an amenable number.

6680680 is an abundant number, since it is smaller than the sum of its proper divisors (8350940).

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

6680680 is a wasteful number, since it uses less digits than its factorization.

6680680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167028 (or 167024 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 6680680 is about 2584.7011432659. The cubic root of 6680680 is about 188.3389840022.

The spelling of 6680680 in words is "six million, six hundred eighty thousand, six hundred eighty".