28325816 has 16 divisors (see below), whose sum is σ = 54824640. Its totient is φ = 13705920.

The previous prime is 28325749. The next prime is 28325821. The reversal of 28325816 is 61852382.

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, 56861 + ... + 57356.

It is an arithmetic number, because the mean of its divisors is an integer number (3426540).

Almost surely, 2^28325816 is an apocalyptic number.

It is an amenable number.

28325816 is a deficient number, since it is larger than the sum of its proper divisors (26498824).

28325816 is a wasteful number, since it uses less digits than its factorization.

28325816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114254 (or 114250 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 28325816 is about 5322.2002968697. The cubic root of 28325816 is about 304.8321785708.

The spelling of 28325816 in words is "twenty-eight million, three hundred twenty-five thousand, eight hundred sixteen".