28286882 has 12 divisors (see below), whose sum is σ = 45945810. Its totient is φ = 13055328.

The previous prime is 28286873. The next prime is 28286927. The reversal of 28286882 is 28868282.

It can be written as a sum of positive squares in 3 ways, for example, as 19280881 + 9006001 = 4391^2 + 3001^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41507 + ... + 42182.

Almost surely, 2^28286882 is an apocalyptic number.

28286882 is a deficient number, since it is larger than the sum of its proper divisors (17658928).

28286882 is a wasteful number, since it uses less digits than its factorization.

28286882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83717 (or 83704 counting only the distinct ones).

The product of its digits is 196608, while the sum is 44.

The square root of 28286882 is about 5318.5413413830. The cubic root of 28286882 is about 304.6924499937.

The spelling of 28286882 in words is "twenty-eight million, two hundred eighty-six thousand, eight hundred eighty-two".