2163286 has 8 divisors (see below), whose sum is σ = 3251664. Its totient is φ = 1079400.

The previous prime is 2163281. The next prime is 2163289. The reversal of 2163286 is 6823612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631 + ... + 2173.

It is an arithmetic number, because the mean of its divisors is an integer number (406458).

2^2163286 is an apocalyptic number.

2163286 is a deficient number, since it is larger than the sum of its proper divisors (1088378).

2163286 is a wasteful number, since it uses less digits than its factorization.

2163286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246.

The product of its digits is 3456, while the sum is 28.

The square root of 2163286 is about 1470.8113407232. The cubic root of 2163286 is about 129.3315988596.

Adding to 2163286 its reverse (6823612), we get a palindrome (8986898).

The spelling of 2163286 in words is "two million, one hundred sixty-three thousand, two hundred eighty-six".