28036648 has 16 divisors (see below), whose sum is σ = 54264960. Its totient is φ = 13566000.

The previous prime is 28036643. The next prime is 28036667. The reversal of 28036648 is 84663082.

It is not an unprimeable number, because it can be changed into a prime (28036643) by changing a digit.

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, 56278 + ... + 56773.

It is an arithmetic number, because the mean of its divisors is an integer number (3391560).

Almost surely, 2^28036648 is an apocalyptic number.

It is an amenable number.

28036648 is a deficient number, since it is larger than the sum of its proper divisors (26228312).

28036648 is a wasteful number, since it uses less digits than its factorization.

28036648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113088 (or 113084 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 28036648 is about 5294.9644002580. The cubic root of 28036648 is about 303.7913214684.

The spelling of 28036648 in words is "twenty-eight million, thirty-six thousand, six hundred forty-eight".