28895165 has 16 divisors (see below), whose sum is σ = 38631600. Its totient is φ = 20600832.

The previous prime is 28895159. The next prime is 28895179. The reversal of 28895165 is 56159882.

It can be written as a sum of positive squares in 8 ways, for example, as 6446521 + 22448644 = 2539^2 + 4738^2 .

It is a cyclic number.

It is not a de Polignac number, because 28895165 - 2⁶ = 28895101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5780 + ... + 9549.

It is an arithmetic number, because the mean of its divisors is an integer number (2414475).

Almost surely, 2^28895165 is an apocalyptic number.

It is an amenable number.

28895165 is a deficient number, since it is larger than the sum of its proper divisors (9736435).

28895165 is a wasteful number, since it uses less digits than its factorization.

28895165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15376.

The product of its digits is 172800, while the sum is 44.

The square root of 28895165 is about 5375.4223089912. The cubic root of 28895165 is about 306.8610213849.

The spelling of 28895165 in words is "twenty-eight million, eight hundred ninety-five thousand, one hundred sixty-five".