9768729 has 8 divisors (see below), whose sum is σ = 13171680. Its totient is φ = 6439136.

The previous prime is 9768719. The next prime is 9768739. The reversal of 9768729 is 9278679.

It is an interprime number because it is at equal distance from previous prime (9768719) and next prime (9768739).

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 9768729 - 2²¹ = 7671577 is a prime.

9768729 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9768709) 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, 18027 + ... + 18560.

It is an arithmetic number, because the mean of its divisors is an integer number (1646460).

Almost surely, 2^9768729 is an apocalyptic number.

It is an amenable number.

9768729 is a deficient number, since it is larger than the sum of its proper divisors (3402951).

9768729 is a wasteful number, since it uses less digits than its factorization.

9768729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36679.

The product of its digits is 381024, while the sum is 48.

The square root of 9768729 is about 3125.4966005421. The cubic root of 9768729 is about 213.7696374011.

The spelling of 9768729 in words is "nine million, seven hundred sixty-eight thousand, seven hundred twenty-nine".