28196286 has 16 divisors (see below), whose sum is σ = 56838144. Its totient is φ = 9324504.

The previous prime is 28196281. The next prime is 28196291. The reversal of 28196286 is 68269182.

It is an interprime number because it is at equal distance from previous prime (28196281) and next prime (28196291).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28196281) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17740 + ... + 19263.

It is an arithmetic number, because the mean of its divisors is an integer number (3552384).

Almost surely, 2^28196286 is an apocalyptic number.

28196286 is an abundant number, since it is smaller than the sum of its proper divisors (28641858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28196286 is a wasteful number, since it uses less digits than its factorization.

28196286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37135.

The product of its digits is 82944, while the sum is 42.

The square root of 28196286 is about 5310.0175140954. The cubic root of 28196286 is about 304.3668168457.

It can be divided in two parts, 28196 and 286, that added together give a palindrome (28482).

The spelling of 28196286 in words is "twenty-eight million, one hundred ninety-six thousand, two hundred eighty-six".