28827688 has 16 divisors (see below), whose sum is σ = 54859680. Its totient is φ = 14198448.

The previous prime is 28827683. The next prime is 28827703. The reversal of 28827688 is 88672882.

It is not an unprimeable number, because it can be changed into a prime (28827683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26356 + ... + 27427.

It is an arithmetic number, because the mean of its divisors is an integer number (3428730).

Almost surely, 2^28827688 is an apocalyptic number.

It is an amenable number.

28827688 is a deficient number, since it is larger than the sum of its proper divisors (26031992).

28827688 is a wasteful number, since it uses less digits than its factorization.

28827688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53856 (or 53852 counting only the distinct ones).

The product of its digits is 688128, while the sum is 49.

The square root of 28827688 is about 5369.1422033692. The cubic root of 28827688 is about 306.6219710118.

The spelling of 28827688 in words is "twenty-eight million, eight hundred twenty-seven thousand, six hundred eighty-eight".