28184996 has 24 divisors (see below), whose sum is σ = 57523200. Its totient is φ = 12078696.

The previous prime is 28184971. The next prime is 28185011. The reversal of 28184996 is 69948182.

It is a self number, because there is not a number n which added to its sum of digits gives 28184996.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 8900 + ... + 11643.

It is an arithmetic number, because the mean of its divisors is an integer number (2396800).

Almost surely, 2^28184996 is an apocalyptic number.

It is an amenable number.

28184996 is an abundant number, since it is smaller than the sum of its proper divisors (29338204).

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

28184996 is a wasteful number, since it uses less digits than its factorization.

28184996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20568 (or 20552 counting only the distinct ones).

The product of its digits is 248832, while the sum is 47.

The square root of 28184996 is about 5308.9543226515. The cubic root of 28184996 is about 304.3261878529.

The spelling of 28184996 in words is "twenty-eight million, one hundred eighty-four thousand, nine hundred ninety-six".