28227548 has 12 divisors (see below), whose sum is σ = 52304112. Its totient is φ = 13283520.

The previous prime is 28227523. The next prime is 28227649. The reversal of 28227548 is 84572282.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207488 + ... + 207623.

It is an arithmetic number, because the mean of its divisors is an integer number (4358676).

Almost surely, 2^28227548 is an apocalyptic number.

It is an amenable number.

28227548 is a deficient number, since it is larger than the sum of its proper divisors (24076564).

28227548 is a wasteful number, since it uses less digits than its factorization.

28227548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415132 (or 415130 counting only the distinct ones).

The product of its digits is 71680, while the sum is 38.

The square root of 28227548 is about 5312.9603800518. The cubic root of 28227548 is about 304.4792619273.

The spelling of 28227548 in words is "twenty-eight million, two hundred twenty-seven thousand, five hundred forty-eight".