8818728 has 32 divisors (see below), whose sum is σ = 22644960. Its totient is φ = 2859840.

The previous prime is 8818727. The next prime is 8818759. The reversal of 8818728 is 8278188.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8818728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8818727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4078 + ... + 5853.

It is an arithmetic number, because the mean of its divisors is an integer number (707655).

Almost surely, 2^8818728 is an apocalyptic number.

It is an amenable number.

8818728 is an abundant number, since it is smaller than the sum of its proper divisors (13826232).

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

8818728 is a wasteful number, since it uses less digits than its factorization.

8818728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9977 (or 9973 counting only the distinct ones).

The product of its digits is 57344, while the sum is 42.

The square root of 8818728 is about 2969.6343209224. The cubic root of 8818728 is about 206.6023779686.

The spelling of 8818728 in words is "eight million, eight hundred eighteen thousand, seven hundred twenty-eight".