28086355 has 16 divisors (see below), whose sum is σ = 38037600. Its totient is φ = 19720960.

The previous prime is 28086319. The next prime is 28086371. The reversal of 28086355 is 55368082.

It is not a de Polignac number, because 28086355 - 2¹¹ = 28084307 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 7210 + ... + 10399.

It is an arithmetic number, because the mean of its divisors is an integer number (2377350).

Almost surely, 2^28086355 is an apocalyptic number.

28086355 is a deficient number, since it is larger than the sum of its proper divisors (9951245).

28086355 is a wasteful number, since it uses less digits than its factorization.

28086355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17654.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 28086355 is about 5299.6561209195. The cubic root of 28086355 is about 303.9707490034.

It can be divided in two parts, 28086 and 355, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 28086355 in words is "twenty-eight million, eighty-six thousand, three hundred fifty-five".