8766728 has 8 divisors (see below), whose sum is σ = 16437630. Its totient is φ = 4383360.

The previous prime is 8766727. The next prime is 8766811. The reversal of 8766728 is 8276678.

It is a happy number.

8766728 is digitally balanced in base 5, because in such base 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., 8514724 + 252004 = 2918^2 + 502^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 8³ + 7⁷ + 6⁴ + 6⁶ + 7⁸ + 2²¹ + 8⁵ .

It is not an unprimeable number, because it can be changed into a prime (8766721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 547913 + ... + 547928.

Almost surely, 2^8766728 is an apocalyptic number.

It is an amenable number.

8766728 is a deficient number, since it is larger than the sum of its proper divisors (7670902).

8766728 is a wasteful number, since it uses less digits than its factorization.

8766728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095847 (or 1095843 counting only the distinct ones).

The product of its digits is 225792, while the sum is 44.

The square root of 8766728 is about 2960.8660895083. The cubic root of 8766728 is about 206.1954973219.

The spelling of 8766728 in words is "eight million, seven hundred sixty-six thousand, seven hundred twenty-eight".