6797809 has 2 divisors, whose sum is σ = 6797810. Its totient is φ = 6797808.

The previous prime is 6797767. The next prime is 6797821. The reversal of 6797809 is 9087976.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5987809 + 810000 = 2447^2 + 900^2 .

It is a cyclic number.

It is not a de Polignac number, because 6797809 - 2¹³ = 6789617 is a prime.

6797809 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6797849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3398904 + 3398905.

It is an arithmetic number, because the mean of its divisors is an integer number (3398905).

Almost surely, 2^6797809 is an apocalyptic number.

It is an amenable number.

6797809 is a deficient number, since it is larger than the sum of its proper divisors (1).

6797809 is an equidigital number, since it uses as much as digits as its factorization.

6797809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 6797809 is about 2607.2608231629. The cubic root of 6797809 is about 189.4332975582.

The spelling of 6797809 in words is "six million, seven hundred ninety-seven thousand, eight hundred nine".