6736409 has 8 divisors (see below), whose sum is σ = 6923520. Its totient is φ = 6552000.

The previous prime is 6736361. The next prime is 6736417. The reversal of 6736409 is 9046376.

6736409 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6736409 - 2²⁰ = 5687833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6736489) 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 7 ways as a sum of consecutive naturals, for example, 5009 + ... + 6209.

It is an arithmetic number, because the mean of its divisors is an integer number (865440).

Almost surely, 2^6736409 is an apocalyptic number.

It is an amenable number.

6736409 is a deficient number, since it is larger than the sum of its proper divisors (187111).

6736409 is a wasteful number, since it uses less digits than its factorization.

6736409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 6736409 is about 2595.4593042466. The cubic root of 6736409 is about 188.8612308728.

The spelling of 6736409 in words is "six million, seven hundred thirty-six thousand, four hundred nine".