28989582 has 16 divisors (see below), whose sum is σ = 58084992. Its totient is φ = 9645560.

The previous prime is 28989577. The next prime is 28989593. The reversal of 28989582 is 28598982.

It is a congruent number.

It is an unprimeable number.

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, 594 + ... + 7637.

It is an arithmetic number, because the mean of its divisors is an integer number (3630312).

Almost surely, 2^28989582 is an apocalyptic number.

28989582 is an abundant number, since it is smaller than the sum of its proper divisors (29095410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28989582 is a wasteful number, since it uses less digits than its factorization.

28989582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8823.

The product of its digits is 829440, while the sum is 51.

The square root of 28989582 is about 5384.1974332300. The cubic root of 28989582 is about 307.1948880511.

The spelling of 28989582 in words is "twenty-eight million, nine hundred eighty-nine thousand, five hundred eighty-two".