8728208 has 20 divisors (see below), whose sum is σ = 17906220. Its totient is φ = 4107264.

The previous prime is 8728207. The next prime is 8728211. The reversal of 8728208 is 8028278.

It can be written as a sum of positive squares in 2 ways, for example, as 2715904 + 6012304 = 1648^2 + 2452^2 .

It is a super-2 number, since 2×8728208² = 152363229782528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8728207) 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, 15773 + ... + 16316.

It is an arithmetic number, because the mean of its divisors is an integer number (895311).

Almost surely, 2^8728208 is an apocalyptic number.

It is an amenable number.

8728208 is an abundant number, since it is smaller than the sum of its proper divisors (9178012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8728208 is a wasteful number, since it uses less digits than its factorization.

8728208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32114 (or 32108 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 8728208 is about 2954.3540749206. The cubic root of 8728208 is about 205.8930541120.

The spelling of 8728208 in words is "eight million, seven hundred twenty-eight thousand, two hundred eight".