2160839 has 4 divisors (see below), whose sum is σ = 2164320. Its totient is φ = 2157360.

The previous prime is 2160833. The next prime is 2160841. The reversal of 2160839 is 9380612.

2160839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2160839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527 + ... + 2144.

It is an arithmetic number, because the mean of its divisors is an integer number (541080).

2^2160839 is an apocalyptic number.

2160839 is a deficient number, since it is larger than the sum of its proper divisors (3481).

2160839 is an equidigital number, since it uses as much as digits as its factorization.

2160839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 2160839 is about 1469.9792515543. The cubic root of 2160839 is about 129.2828160012.

The spelling of 2160839 in words is "two million, one hundred sixty thousand, eight hundred thirty-nine".