28086325 has 12 divisors (see below), whose sum is σ = 35013508. Its totient is φ = 22348800.

The previous prime is 28086319. The next prime is 28086371. The reversal of 28086325 is 52368082.

It can be written as a sum of positive squares in 6 ways, for example, as 133956 + 27952369 = 366^2 + 5287^2 .

It is not a de Polignac number, because 28086325 - 2¹⁹ = 27562037 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 1915 + ... + 7735.

Almost surely, 2^28086325 is an apocalyptic number.

28086325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28086325 is a deficient number, since it is larger than the sum of its proper divisors (6927183).

28086325 is a wasteful number, since it uses less digits than its factorization.

28086325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6024 (or 6019 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 28086325 is about 5299.6532905465. The cubic root of 28086325 is about 303.9706407762.

The spelling of 28086325 in words is "twenty-eight million, eighty-six thousand, three hundred twenty-five".