28226085 has 16 divisors (see below), whose sum is σ = 46123776. Its totient is φ = 14733248.

The previous prime is 28226071. The next prime is 28226087. The reversal of 28226085 is 58062282.

It is a cyclic number.

It is not a de Polignac number, because 28226085 - 2⁷ = 28225957 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28226087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19314 + ... + 20723.

It is an arithmetic number, because the mean of its divisors is an integer number (2882736).

Almost surely, 2^28226085 is an apocalyptic number.

It is an amenable number.

28226085 is a deficient number, since it is larger than the sum of its proper divisors (17897691).

28226085 is a wasteful number, since it uses less digits than its factorization.

28226085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40092.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 28226085 is about 5312.8226960816. The cubic root of 28226085 is about 304.4740015713.

The spelling of 28226085 in words is "twenty-eight million, two hundred twenty-six thousand, eighty-five".