28589000 has 128 divisors (see below), whose sum is σ = 76826880. Its totient is φ = 9856000.

The previous prime is 28588999. The next prime is 28589017. The reversal of 28589000 is 98582.

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 31 ways as a sum of consecutive naturals, for example, 252944 + ... + 253056.

It is an arithmetic number, because the mean of its divisors is an integer number (600210).

Almost surely, 2^28589000 is an apocalyptic number.

28589000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28589000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38413440).

28589000 is an abundant number, since it is smaller than the sum of its proper divisors (48237880).

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

28589000 is a wasteful number, since it uses less digits than its factorization.

28589000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 28589000 is about 5346.8682422517. The cubic root of 28589000 is about 305.7733665851.

The spelling of 28589000 in words is "twenty-eight million, five hundred eighty-nine thousand".