8000728 has 16 divisors (see below), whose sum is σ = 15485760. Its totient is φ = 3871200.

The previous prime is 8000719. The next prime is 8000747. The reversal of 8000728 is 8270008.

8000728 is a modest number, since divided by 728 gives 8 as remainder.

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 3 ways as a sum of consecutive naturals, for example, 15883 + ... + 16378.

It is an arithmetic number, because the mean of its divisors is an integer number (967860).

Almost surely, 2^8000728 is an apocalyptic number.

It is an amenable number.

8000728 is a deficient number, since it is larger than the sum of its proper divisors (7485032).

8000728 is a wasteful number, since it uses less digits than its factorization.

8000728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32298 (or 32294 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 8000728 is about 2828.5558152527. Note that the first 3 decimals coincide. The cubic root of 8000728 is about 200.0060664827.

The spelling of 8000728 in words is "eight million, seven hundred twenty-eight", and thus it is an aban number.