8875728 has 30 divisors (see below), whose sum is σ = 24840114. Its totient is φ = 2958528.

The previous prime is 8875667. The next prime is 8875739. The reversal of 8875728 is 8275788.

It is a happy number.

8875728 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6290064 + 2585664 = 2508^2 + 1608^2 .

It is a super-3 number, since 3×8875728³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30675 + ... + 30962.

Almost surely, 2^8875728 is an apocalyptic number.

It is an amenable number.

8875728 is an abundant number, since it is smaller than the sum of its proper divisors (15964386).

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

8875728 is a wasteful number, since it uses less digits than its factorization.

8875728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61651 (or 61642 counting only the distinct ones).

The product of its digits is 250880, while the sum is 45.

The square root of 8875728 is about 2979.2160042535. The cubic root of 8875728 is about 207.0465483780.

The spelling of 8875728 in words is "eight million, eight hundred seventy-five thousand, seven hundred twenty-eight".