28584189 has 12 divisors (see below), whose sum is σ = 43461600. Its totient is φ = 18053064.

The previous prime is 28584181. The next prime is 28584197. The reversal of 28584189 is 98148582.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28584181) and next prime (28584197).

It is not a de Polignac number, because 28584189 - 2³ = 28584181 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28584181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83409 + ... + 83750.

It is an arithmetic number, because the mean of its divisors is an integer number (3621800).

Almost surely, 2^28584189 is an apocalyptic number.

It is an amenable number.

28584189 is a deficient number, since it is larger than the sum of its proper divisors (14877411).

28584189 is a wasteful number, since it uses less digits than its factorization.

28584189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167184 (or 167181 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 28584189 is about 5346.4183338007. The cubic root of 28584189 is about 305.7562136219.

The spelling of 28584189 in words is "twenty-eight million, five hundred eighty-four thousand, one hundred eighty-nine".