6680897 has 4 divisors (see below), whose sum is σ = 6688596. Its totient is φ = 6673200.

The previous prime is 6680873. The next prime is 6680923. The reversal of 6680897 is 7980866.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4343056 + 2337841 = 2084^2 + 1529^2 .

It is a cyclic number.

It is not a de Polignac number, because 6680897 - 2¹⁴ = 6664513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6680497) 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, 2354 + ... + 4347.

It is an arithmetic number, because the mean of its divisors is an integer number (1672149).

Almost surely, 2^6680897 is an apocalyptic number.

It is an amenable number.

6680897 is a deficient number, since it is larger than the sum of its proper divisors (7699).

6680897 is an equidigital number, since it uses as much as digits as its factorization.

6680897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7698.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 6680897 is about 2584.7431206988. The cubic root of 6680897 is about 188.3410231717.

The spelling of 6680897 in words is "six million, six hundred eighty thousand, eight hundred ninety-seven".