8128072 has 8 divisors (see below), whose sum is σ = 15240150. Its totient is φ = 4064032.

The previous prime is 8128069. The next prime is 8128111. The reversal of 8128072 is 2708218.

It can be written as a sum of positive squares in only one way, i.e., 4866436 + 3261636 = 2206^2 + 1806^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 8128072.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507997 + ... + 508012.

Almost surely, 2^8128072 is an apocalyptic number.

It is an amenable number.

8128072 is a deficient number, since it is larger than the sum of its proper divisors (7112078).

8128072 is a wasteful number, since it uses less digits than its factorization.

8128072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016015 (or 1016011 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 8128072 is about 2850.9773762694. The cubic root of 8128072 is about 201.0616214949.

The spelling of 8128072 in words is "eight million, one hundred twenty-eight thousand, seventy-two".