8729573 has 4 divisors (see below), whose sum is σ = 8746080. Its totient is φ = 8713068.

The previous prime is 8729563. The next prime is 8729593. The reversal of 8729573 is 3759278.

8729573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8729573 - 2⁴ = 8729557 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 8729573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8729543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7433 + ... + 8526.

It is an arithmetic number, because the mean of its divisors is an integer number (2186520).

Almost surely, 2^8729573 is an apocalyptic number.

It is an amenable number.

8729573 is a deficient number, since it is larger than the sum of its proper divisors (16507).

8729573 is a wasteful number, since it uses less digits than its factorization.

8729573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16506.

The product of its digits is 105840, while the sum is 41.

The square root of 8729573 is about 2954.5850808531. The cubic root of 8729573 is about 205.9037867225.

The spelling of 8729573 in words is "eight million, seven hundred twenty-nine thousand, five hundred seventy-three".