28038095 has 4 divisors (see below), whose sum is σ = 33645720. Its totient is φ = 22430472.

The previous prime is 28038089. The next prime is 28038163. The reversal of 28038095 is 59083082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28038095 - 2⁴ = 28038079 is a prime.

It is a super-2 number, since 2×28038095² = 1572269542458050, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 2803805 + ... + 2803814.

It is an arithmetic number, because the mean of its divisors is an integer number (8411430).

Almost surely, 2^28038095 is an apocalyptic number.

28038095 is a deficient number, since it is larger than the sum of its proper divisors (5607625).

28038095 is an equidigital number, since it uses as much as digits as its factorization.

28038095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5607624.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 28038095 is about 5295.1010377518. The cubic root of 28038095 is about 303.7965477051.

The spelling of 28038095 in words is "twenty-eight million, thirty-eight thousand, ninety-five".