28302085 has 16 divisors (see below), whose sum is σ = 38900736. Its totient is φ = 19363968.

The previous prime is 28302083. The next prime is 28302097. The reversal of 28302085 is 58020382.

It is a cyclic number.

It is not a de Polignac number, because 28302085 - 2¹ = 28302083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28302083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29737 + ... + 30673.

It is an arithmetic number, because the mean of its divisors is an integer number (2431296).

Almost surely, 2^28302085 is an apocalyptic number.

It is an amenable number.

28302085 is a deficient number, since it is larger than the sum of its proper divisors (10598651).

28302085 is an equidigital number, since it uses as much as digits as its factorization.

28302085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 28302085 is about 5319.9703946545. The cubic root of 28302085 is about 304.7470266426.

The spelling of 28302085 in words is "twenty-eight million, three hundred two thousand, eighty-five".