9813573 has 72 divisors (see below), whose sum is σ = 19156800. Its totient is φ = 4798080.

The previous prime is 9813563. The next prime is 9813581. The reversal of 9813573 is 3753189.

9813573 is a `hidden beast` number, since 9 + 81 + 3 + 573 = 666.

It is not a de Polignac number, because 9813573 - 2⁶ = 9813509 is a prime.

Its product of digits (22680) is a multiple of the sum of its prime factors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9813523) 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 71 ways as a sum of consecutive naturals, for example, 577261 + ... + 577277.

Almost surely, 2^9813573 is an apocalyptic number.

It is an amenable number.

9813573 is a deficient number, since it is larger than the sum of its proper divisors (9343227).

9813573 is a wasteful number, since it uses less digits than its factorization.

9813573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 38 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 9813573 is about 3132.6622862990. The cubic root of 9813573 is about 214.0962460482.

It can be divided in two parts, 981 and 3573, that added together give a palindrome (4554).

The spelling of 9813573 in words is "nine million, eight hundred thirteen thousand, five hundred seventy-three".