28195165 has 8 divisors (see below), whose sum is σ = 34311168. Its totient is φ = 22238160.

The previous prime is 28195133. The next prime is 28195201. The reversal of 28195165 is 56159182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28195165 - 2⁵ = 28195133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39357 + ... + 40066.

It is an arithmetic number, because the mean of its divisors is an integer number (4288896).

Almost surely, 2^28195165 is an apocalyptic number.

It is an amenable number.

28195165 is a deficient number, since it is larger than the sum of its proper divisors (6116003).

28195165 is an equidigital number, since it uses as much as digits as its factorization.

28195165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79499.

The product of its digits is 21600, while the sum is 37.

The square root of 28195165 is about 5309.9119578388. The cubic root of 28195165 is about 304.3627832209.

The spelling of 28195165 in words is "twenty-eight million, one hundred ninety-five thousand, one hundred sixty-five".