8728080 has 80 divisors (see below), whose sum is σ = 27748224. Its totient is φ = 2268160.

The previous prime is 8728079. The next prime is 8728129. The reversal of 8728080 is 808278.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9397 + ... + 10283.

Almost surely, 2^8728080 is an apocalyptic number.

8728080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8728080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13874112).

8728080 is an abundant number, since it is smaller than the sum of its proper divisors (19020144).

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

8728080 is a wasteful number, since it uses less digits than its factorization.

8728080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 8728080 is about 2954.3324118995. The cubic root of 8728080 is about 205.8920476267.

The spelling of 8728080 in words is "eight million, seven hundred twenty-eight thousand, eighty".