28088056 has 8 divisors (see below), whose sum is σ = 52665120. Its totient is φ = 14044024.

The previous prime is 28088051. The next prime is 28088059. The reversal of 28088056 is 65088082.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28088051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1755496 + ... + 1755511.

It is an arithmetic number, because the mean of its divisors is an integer number (6583140).

Almost surely, 2^28088056 is an apocalyptic number.

It is an amenable number.

28088056 is a deficient number, since it is larger than the sum of its proper divisors (24577064).

28088056 is a wasteful number, since it uses less digits than its factorization.

28088056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3511013 (or 3511009 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 28088056 is about 5299.8166006004. The cubic root of 28088056 is about 303.9768853616.

The spelling of 28088056 in words is "twenty-eight million, eighty-eight thousand, fifty-six".