6732729 has 12 divisors (see below), whose sum is σ = 9747556. Its totient is φ = 4478112.

The previous prime is 6732709. The next prime is 6732751. The reversal of 6732729 is 9272376.

It can be written as a sum of positive squares in 2 ways, for example, as 2812329 + 3920400 = 1677^2 + 1980^2 .

It is not a de Polignac number, because 6732729 - 2¹¹ = 6730681 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6732693 and 6732702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6732709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7239 + ... + 8115.

Almost surely, 2^6732729 is an apocalyptic number.

It is an amenable number.

6732729 is a deficient number, since it is larger than the sum of its proper divisors (3014827).

6732729 is a wasteful number, since it uses less digits than its factorization.

6732729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736 (or 1733 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 6732729 is about 2594.7502770016. The cubic root of 6732729 is about 188.8268339152.

The spelling of 6732729 in words is "six million, seven hundred thirty-two thousand, seven hundred twenty-nine".