2189208847 has 8 divisors (see below), whose sum is σ = 2649126816. Its totient is φ = 1766084352.

The previous prime is 2189208829. The next prime is 2189208851. The reversal of 2189208847 is 7488029812.

2189208847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2189208847 - 2¹⁵ = 2189176079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2189208847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189208877) 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, 9198238 + ... + 9198475.

It is an arithmetic number, because the mean of its divisors is an integer number (331140852).

Almost surely, 2^2189208847 is an apocalyptic number.

2189208847 is a deficient number, since it is larger than the sum of its proper divisors (459917969).

2189208847 is a wasteful number, since it uses less digits than its factorization.

2189208847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18396737.

The product of its (nonzero) digits is 516096, while the sum is 49.

The square root of 2189208847 is about 46788.9821111766. The cubic root of 2189208847 is about 1298.4614633078.

The spelling of 2189208847 in words is "two billion, one hundred eighty-nine million, two hundred eight thousand, eight hundred forty-seven".