2189284187 has 8 divisors (see below), whose sum is σ = 2286951840. Its totient is φ = 2091823360.

The previous prime is 2189284169. The next prime is 2189284199. The reversal of 2189284187 is 7814829812.

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 2189284187 - 2⁸ = 2189283931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2189284147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29864 + ... + 72597.

It is an arithmetic number, because the mean of its divisors is an integer number (285868980).

Almost surely, 2^2189284187 is an apocalyptic number.

2189284187 is a deficient number, since it is larger than the sum of its proper divisors (97667653).

2189284187 is a wasteful number, since it uses less digits than its factorization.

2189284187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103413.

The product of its digits is 516096, while the sum is 50.

The square root of 2189284187 is about 46789.7872083214. The cubic root of 2189284187 is about 1298.4763583333.

The spelling of 2189284187 in words is "two billion, one hundred eighty-nine million, two hundred eighty-four thousand, one hundred eighty-seven".