28086032 has 20 divisors (see below), whose sum is σ = 58603020. Its totient is φ = 12962688.

The previous prime is 28086017. The next prime is 28086049. The reversal of 28086032 is 23068082.

It can be written as a sum of positive squares in 2 ways, for example, as 3444736 + 24641296 = 1856^2 + 4964^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28085986 and 28086004.

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 3 ways as a sum of consecutive naturals, for example, 67307 + ... + 67722.

It is an arithmetic number, because the mean of its divisors is an integer number (2930151).

Almost surely, 2^28086032 is an apocalyptic number.

It is an amenable number.

28086032 is an abundant number, since it is smaller than the sum of its proper divisors (30516988).

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

28086032 is a wasteful number, since it uses less digits than its factorization.

28086032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135050 (or 135044 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 28086032 is about 5299.6256471566. The cubic root of 28086032 is about 303.9695837528.

The spelling of 28086032 in words is "twenty-eight million, eighty-six thousand, thirty-two".