6729345 has 32 divisors (see below), whose sum is σ = 13674240. Its totient is φ = 3075840.

The previous prime is 6729341. The next prime is 6729347. The reversal of 6729345 is 5439276.

It is not a de Polignac number, because 6729345 - 2² = 6729341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6729341) 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 31 ways as a sum of consecutive naturals, for example, 2616 + ... + 4505.

It is an arithmetic number, because the mean of its divisors is an integer number (427320).

Almost surely, 2^6729345 is an apocalyptic number.

It is an amenable number.

6729345 is an abundant number, since it is smaller than the sum of its proper divisors (6944895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6729345 is a wasteful number, since it uses less digits than its factorization.

6729345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7142 (or 7136 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 6729345 is about 2594.0981091701. The cubic root of 6729345 is about 188.7951926054.

The spelling of 6729345 in words is "six million, seven hundred twenty-nine thousand, three hundred forty-five".