8812728 has 24 divisors (see below), whose sum is σ = 23868000. Its totient is φ = 2937552.

The previous prime is 8812693. The next prime is 8812753. The reversal of 8812728 is 8272188.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 8812692 and 8812701.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 61128 + ... + 61271.

It is an arithmetic number, because the mean of its divisors is an integer number (994500).

Almost surely, 2^8812728 is an apocalyptic number.

It is an amenable number.

8812728 is an abundant number, since it is smaller than the sum of its proper divisors (15055272).

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

8812728 is a wasteful number, since it uses less digits than its factorization.

8812728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122411 (or 122404 counting only the distinct ones).

The product of its digits is 14336, while the sum is 36.

The square root of 8812728 is about 2968.6239236387. The cubic root of 8812728 is about 206.5555119691. Note that the first 4 decimals are identical.

The spelling of 8812728 in words is "eight million, eight hundred twelve thousand, seven hundred twenty-eight".