28372084 has 12 divisors (see below), whose sum is σ = 53470564. Its totient is φ = 13094784.

The previous prime is 28372079. The next prime is 28372093. The reversal of 28372084 is 48027382.

It can be written as a sum of positive squares in 2 ways, for example, as 5062500 + 23309584 = 2250^2 + 4828^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 272757 + ... + 272860.

Almost surely, 2^28372084 is an apocalyptic number.

It is an amenable number.

28372084 is a deficient number, since it is larger than the sum of its proper divisors (25098480).

28372084 is a wasteful number, since it uses less digits than its factorization.

28372084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545634 (or 545632 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 28372084 is about 5326.5452218112. The cubic root of 28372084 is about 304.9980614407.

The spelling of 28372084 in words is "twenty-eight million, three hundred seventy-two thousand, eighty-four".