6750729 has 8 divisors (see below), whose sum is σ = 10001120. Its totient is φ = 4500468.

The previous prime is 6750727. The next prime is 6750781. The reversal of 6750729 is 9270576.

It is not a de Polignac number, because 6750729 - 2¹ = 6750727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6750693 and 6750702.

It is not an unprimeable number, because it can be changed into a prime (6750727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124987 + ... + 125040.

It is an arithmetic number, because the mean of its divisors is an integer number (1250140).

Almost surely, 2^6750729 is an apocalyptic number.

It is an amenable number.

6750729 is a deficient number, since it is larger than the sum of its proper divisors (3250391).

6750729 is a wasteful number, since it uses less digits than its factorization.

6750729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250036 (or 250030 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 6750729 is about 2598.2165036809. The cubic root of 6750729 is about 188.9949608130.

The spelling of 6750729 in words is "six million, seven hundred fifty thousand, seven hundred twenty-nine".