28015088 has 30 divisors (see below), whose sum is σ = 55324584. Its totient is φ = 13742752.

The previous prime is 28015087. The next prime is 28015093. The reversal of 28015088 is 88051082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28015087) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55445 + ... + 55947.

Almost surely, 2^28015088 is an apocalyptic number.

It is an amenable number.

28015088 is a deficient number, since it is larger than the sum of its proper divisors (27309496).

28015088 is an equidigital number, since it uses as much as digits as its factorization.

28015088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 28015088 is about 5292.9281121134. The cubic root of 28015088 is about 303.7134303155.

The spelling of 28015088 in words is "twenty-eight million, fifteen thousand, eighty-eight".