8729073 has 16 divisors (see below), whose sum is σ = 13350400. Its totient is φ = 5631120.

The previous prime is 8729059. The next prime is 8729081. The reversal of 8729073 is 3709278.

It is not a de Polignac number, because 8729073 - 2⁴ = 8729057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8729033) 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 15 ways as a sum of consecutive naturals, for example, 4378 + ... + 6051.

It is an arithmetic number, because the mean of its divisors is an integer number (834400).

Almost surely, 2^8729073 is an apocalyptic number.

It is an amenable number.

8729073 is a deficient number, since it is larger than the sum of its proper divisors (4621327).

8729073 is a wasteful number, since it uses less digits than its factorization.

8729073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10469 (or 10463 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 8729073 is about 2954.5004653917. The cubic root of 8729073 is about 205.8998554932.

The spelling of 8729073 in words is "eight million, seven hundred twenty-nine thousand, seventy-three".