6880009 has 2 divisors, whose sum is σ = 6880010. Its totient is φ = 6880008.

The previous prime is 6879997. The next prime is 6880021. The reversal of 6880009 is 9000886.

It is a balanced prime because it is at equal distance from previous prime (6879997) and next prime (6880021).

It can be written as a sum of positive squares in only one way, i.e., 4928400 + 1951609 = 2220^2 + 1397^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6880009 is a prime.

It is not a weakly prime, because it can be changed into another prime (6880099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3440004 + 3440005.

It is an arithmetic number, because the mean of its divisors is an integer number (3440005).

Almost surely, 2^6880009 is an apocalyptic number.

It is an amenable number.

6880009 is a deficient number, since it is larger than the sum of its proper divisors (1).

6880009 is an equidigital number, since it uses as much as digits as its factorization.

6880009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 6880009 is about 2622.9771253292. The cubic root of 6880009 is about 190.1937911944.

The spelling of 6880009 in words is "six million, eight hundred eighty thousand, nine".