27728998 has 16 divisors (see below), whose sum is σ = 45619200. Its totient is φ = 12536200.

The previous prime is 27728993. The next prime is 27729029. The reversal of 27728998 is 89982772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27728993) 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 7 ways as a sum of consecutive naturals, for example, 903 + ... + 7501.

It is an arithmetic number, because the mean of its divisors is an integer number (2851200).

Almost surely, 2^27728998 is an apocalyptic number.

27728998 is a deficient number, since it is larger than the sum of its proper divisors (17890202).

27728998 is a wasteful number, since it uses less digits than its factorization.

27728998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6803.

The product of its digits is 1016064, while the sum is 52.

The square root of 27728998 is about 5265.8330774912. The cubic root of 27728998 is about 302.6760507892.

The spelling of 27728998 in words is "twenty-seven million, seven hundred twenty-eight thousand, nine hundred ninety-eight".