8728265 has 16 divisors (see below), whose sum is σ = 12891648. Its totient is φ = 5524416.

The previous prime is 8728261. The next prime is 8728273. The reversal of 8728265 is 5628278.

It is a cyclic number.

It is not a de Polignac number, because 8728265 - 2² = 8728261 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8728261) 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, 9137 + ... + 10046.

It is an arithmetic number, because the mean of its divisors is an integer number (805728).

Almost surely, 2^8728265 is an apocalyptic number.

It is an amenable number.

8728265 is a deficient number, since it is larger than the sum of its proper divisors (4163383).

8728265 is a wasteful number, since it uses less digits than its factorization.

8728265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19208.

The product of its digits is 53760, while the sum is 38.

The square root of 8728265 is about 2954.3637216836. The cubic root of 8728265 is about 205.8935023094.

The spelling of 8728265 in words is "eight million, seven hundred twenty-eight thousand, two hundred sixty-five".