6808149 has 12 divisors (see below), whose sum is σ = 9996012. Its totient is φ = 4464000.

The previous prime is 6808103. The next prime is 6808159. The reversal of 6808149 is 9418086.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1134225 + 5673924 = 1065^2 + 2382^2 .

It is not a de Polignac number, because 6808149 - 2⁹ = 6807637 is a prime.

6808149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6808159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5652 + ... + 6749.

It is an arithmetic number, because the mean of its divisors is an integer number (833001).

Almost surely, 2^6808149 is an apocalyptic number.

It is an amenable number.

6808149 is a deficient number, since it is larger than the sum of its proper divisors (3187863).

6808149 is a wasteful number, since it uses less digits than its factorization.

6808149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12468 (or 12465 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 6808149 is about 2609.2429936669. The cubic root of 6808149 is about 189.5292965290.

The spelling of 6808149 in words is "six million, eight hundred eight thousand, one hundred forty-nine".