8728845 has 16 divisors (see below), whose sum is σ = 14573952. Its totient is φ = 4452800.

The previous prime is 8728823. The next prime is 8728849. The reversal of 8728845 is 5488278.

It is not a de Polignac number, because 8728845 - 2⁷ = 8728717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8728797 and 8728806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8728849) 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, 12306 + ... + 12995.

It is an arithmetic number, because the mean of its divisors is an integer number (910872).

Almost surely, 2^8728845 is an apocalyptic number.

It is an amenable number.

8728845 is a deficient number, since it is larger than the sum of its proper divisors (5845107).

8728845 is a wasteful number, since it uses less digits than its factorization.

8728845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25332.

The product of its digits is 143360, while the sum is 42.

The square root of 8728845 is about 2954.4618799369. The cubic root of 8728845 is about 205.8980628028.

The spelling of 8728845 in words is "eight million, seven hundred twenty-eight thousand, eight hundred forty-five".