6769809 has 6 divisors (see below), whose sum is σ = 9778626. Its totient is φ = 4513200.

The previous prime is 6769799. The next prime is 6769813. The reversal of 6769809 is 9089676.

6769809 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4730625 + 2039184 = 2175^2 + 1428^2 .

It is not a de Polignac number, because 6769809 - 2⁴ = 6769793 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6765809) 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 5 ways as a sum of consecutive naturals, for example, 376092 + ... + 376109.

It is an arithmetic number, because the mean of its divisors is an integer number (1629771).

Almost surely, 2^6769809 is an apocalyptic number.

It is an amenable number.

6769809 is a deficient number, since it is larger than the sum of its proper divisors (3008817).

6769809 is a wasteful number, since it uses less digits than its factorization.

6769809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752207 (or 752204 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 6769809 is about 2601.8856623611. The cubic root of 6769809 is about 189.1728493476.

The spelling of 6769809 in words is "six million, seven hundred sixty-nine thousand, eight hundred nine".