9720453 has 16 divisors (see below), whose sum is σ = 13500416. Its totient is φ = 6214320.

The previous prime is 9720449. The next prime is 9720463. The reversal of 9720453 is 3540279.

It is not a de Polignac number, because 9720453 - 2² = 9720449 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9720453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9720433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11400 + ... + 12222.

It is an arithmetic number, because the mean of its divisors is an integer number (843776).

Almost surely, 2^9720453 is an apocalyptic number.

9720453 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

It is an amenable number.

9720453 is a deficient number, since it is larger than the sum of its proper divisors (3779963).

9720453 is a wasteful number, since it uses less digits than its factorization.

9720453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984.

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

The square root of 9720453 is about 3117.7641026864. The cubic root of 9720453 is about 213.4169135938.

The spelling of 9720453 in words is "nine million, seven hundred twenty thousand, four hundred fifty-three".