6809261 has 2 divisors, whose sum is σ = 6809262. Its totient is φ = 6809260.

The previous prime is 6809251. The next prime is 6809279. The reversal of 6809261 is 1629086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3587236 + 3222025 = 1894^2 + 1795^2 .

It is a cyclic number.

It is not a de Polignac number, because 6809261 - 2¹⁰ = 6808237 is a prime.

It is a super-2 number, since 2×6809261² = 92732070732242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6809251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3404630 + 3404631.

It is an arithmetic number, because the mean of its divisors is an integer number (3404631).

Almost surely, 2^6809261 is an apocalyptic number.

It is an amenable number.

6809261 is a deficient number, since it is larger than the sum of its proper divisors (1).

6809261 is an equidigital number, since it uses as much as digits as its factorization.

6809261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 6809261 is about 2609.4560735908. The cubic root of 6809261 is about 189.5396148061.

The spelling of 6809261 in words is "six million, eight hundred nine thousand, two hundred sixty-one".