9720543 has 16 divisors (see below), whose sum is σ = 14962176. Its totient is φ = 5498400.

The previous prime is 9720523. The next prime is 9720547. The reversal of 9720543 is 3450279.

It is not a de Polignac number, because 9720543 - 2⁶ = 9720479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9720543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9720547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171 + ... + 4412.

It is an arithmetic number, because the mean of its divisors is an integer number (935136).

Almost surely, 2^9720543 is an apocalyptic number.

9720543 is a deficient number, since it is larger than the sum of its proper divisors (5241633).

9720543 is a wasteful number, since it uses less digits than its factorization.

9720543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 9720543 is about 3117.7785360734. The cubic root of 9720543 is about 213.4175722552.

The spelling of 9720543 in words is "nine million, seven hundred twenty thousand, five hundred forty-three".