28165108 has 12 divisors (see below), whose sum is σ = 49329280. Its totient is φ = 14071032.

The previous prime is 28165091. The next prime is 28165117. The reversal of 28165108 is 80156182.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28165108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5035 + ... + 9037.

Almost surely, 2^28165108 is an apocalyptic number.

It is an amenable number.

28165108 is a deficient number, since it is larger than the sum of its proper divisors (21164172).

28165108 is a wasteful number, since it uses less digits than its factorization.

28165108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5766 (or 5764 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 28165108 is about 5307.0809302290. The cubic root of 28165108 is about 304.2545910908.

The spelling of 28165108 in words is "twenty-eight million, one hundred sixty-five thousand, one hundred eight".