6748409 has 2 divisors, whose sum is σ = 6748410. Its totient is φ = 6748408.

The previous prime is 6748397. The next prime is 6748411. The reversal of 6748409 is 9048476.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6615184 + 133225 = 2572^2 + 365^2 .

It is a cyclic number.

It is not a de Polignac number, because 6748409 - 2⁸ = 6748153 is a prime.

Together with 6748411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6748459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3374204 + 3374205.

It is an arithmetic number, because the mean of its divisors is an integer number (3374205).

Almost surely, 2^6748409 is an apocalyptic number.

It is an amenable number.

6748409 is a deficient number, since it is larger than the sum of its proper divisors (1).

6748409 is an equidigital number, since it uses as much as digits as its factorization.

6748409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 6748409 is about 2597.7700052160. The cubic root of 6748409 is about 188.9733079146.

The spelling of 6748409 in words is "six million, seven hundred forty-eight thousand, four hundred nine".