2160899 has 8 divisors (see below), whose sum is σ = 2349312. Its totient is φ = 1975680.

The previous prime is 2160883. The next prime is 2160913. The reversal of 2160899 is 9980612.

It is a Cunningham number, because it is equal to 1470²-1.

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 2160899 - 2⁴ = 2160883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2162899) 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, 734 + ... + 2204.

It is an arithmetic number, because the mean of its divisors is an integer number (293664).

2^2160899 is an apocalyptic number.

2160899 is a deficient number, since it is larger than the sum of its proper divisors (188413).

2160899 is a wasteful number, since it uses less digits than its factorization.

2160899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 2160899 is about 1469.9996598639. Note that the first 3 decimals coincide. The cubic root of 2160899 is about 129.2840125884.

The spelling of 2160899 in words is "two million, one hundred sixty thousand, eight hundred ninety-nine".