6680650 has 24 divisors (see below), whose sum is σ = 12665484. Its totient is φ = 2620800.

The previous prime is 6680621. The next prime is 6680651. The reversal of 6680650 is 560866.

It can be written as a sum of positive squares in 6 ways, for example, as 915849 + 5764801 = 957^2 + 2401^2 .

It is not an unprimeable number, because it can be changed into a prime (6680651) 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 11 ways as a sum of consecutive naturals, for example, 1390 + ... + 3910.

Almost surely, 2^6680650 is an apocalyptic number.

6680650 is a deficient number, since it is larger than the sum of its proper divisors (5984834).

6680650 is a wasteful number, since it uses less digits than its factorization.

6680650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586 (or 2581 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 6680650 is about 2584.6953398805. The cubic root of 6680650 is about 188.3387020859.

The spelling of 6680650 in words is "six million, six hundred eighty thousand, six hundred fifty".