28060889 has 8 divisors (see below), whose sum is σ = 28540512. Its totient is φ = 27584800.

The previous prime is 28060867. The next prime is 28060909. The reversal of 28060889 is 98806082.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28060889 - 2²⁰ = 27012313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28060189) 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, 18614 + ... + 20064.

It is an arithmetic number, because the mean of its divisors is an integer number (3567564).

Almost surely, 2^28060889 is an apocalyptic number.

It is an amenable number.

28060889 is a deficient number, since it is larger than the sum of its proper divisors (479623).

28060889 is a wasteful number, since it uses less digits than its factorization.

28060889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 28060889 is about 5297.2529673407. The cubic root of 28060889 is about 303.8788507626.

The spelling of 28060889 in words is "twenty-eight million, sixty thousand, eight hundred eighty-nine".