9128872 has 8 divisors (see below), whose sum is σ = 17116650. Its totient is φ = 4564432.

The previous prime is 9128863. The next prime is 9128909. The reversal of 9128872 is 2788219.

It can be written as a sum of positive squares in only one way, i.e., 8964036 + 164836 = 2994^2 + 406^2 .

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

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 as a sum of consecutive naturals, namely, 570547 + ... + 570562.

Almost surely, 2^9128872 is an apocalyptic number.

It is an amenable number.

9128872 is a deficient number, since it is larger than the sum of its proper divisors (7987778).

9128872 is a wasteful number, since it uses less digits than its factorization.

9128872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141115 (or 1141111 counting only the distinct ones).

The product of its digits is 16128, while the sum is 37.

The square root of 9128872 is about 3021.4023234253. The cubic root of 9128872 is about 208.9965125369.

It can be divided in two parts, 9128 and 872, that added together give a 4-th power (10000 = 10⁴).

The spelling of 9128872 in words is "nine million, one hundred twenty-eight thousand, eight hundred seventy-two".