2160889 has 4 divisors (see below), whose sum is σ = 2274640. Its totient is φ = 2047140.

The previous prime is 2160883. The next prime is 2160913. The reversal of 2160889 is 9880612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2160889 - 2³ = 2160881 is a prime.

It is an Ulam number.

It is a Duffinian number.

2160889 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2160881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56847 + ... + 56884.

It is an arithmetic number, because the mean of its divisors is an integer number (568660).

2^2160889 is an apocalyptic number.

It is an amenable number.

2160889 is a deficient number, since it is larger than the sum of its proper divisors (113751).

2160889 is a wasteful number, since it uses less digits than its factorization.

2160889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113750.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 2160889 is about 1469.9962584986. The cubic root of 2160889 is about 129.2838131587.

The spelling of 2160889 in words is "two million, one hundred sixty thousand, eight hundred eighty-nine".