8628728 has 16 divisors (see below), whose sum is σ = 16362000. Its totient is φ = 4265536.

The previous prime is 8628727. The next prime is 8628751. The reversal of 8628728 is 8278268.

8628728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8628727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5348 + ... + 6771.

It is an arithmetic number, because the mean of its divisors is an integer number (1022625).

Almost surely, 2^8628728 is an apocalyptic number.

It is an amenable number.

8628728 is a deficient number, since it is larger than the sum of its proper divisors (7733272).

8628728 is a wasteful number, since it uses less digits than its factorization.

8628728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12214 (or 12210 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 8628728 is about 2937.4696594178. The cubic root of 8628728 is about 205.1078393552.

The spelling of 8628728 in words is "eight million, six hundred twenty-eight thousand, seven hundred twenty-eight".