2163287 has 8 divisors (see below), whose sum is σ = 2530176. Its totient is φ = 1810872.

The previous prime is 2163281. The next prime is 2163289. The reversal of 2163287 is 7823612.

It is a happy number.

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

It is not a de Polignac number, because 2163287 - 2⁶ = 2163223 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 (2163281) 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, 3293 + ... + 3894.

It is an arithmetic number, because the mean of its divisors is an integer number (316272).

2^2163287 is an apocalyptic number.

2163287 is a deficient number, since it is larger than the sum of its proper divisors (366889).

2163287 is an equidigital number, since it uses as much as digits as its factorization.

2163287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7237.

The product of its digits is 4032, while the sum is 29.

The square root of 2163287 is about 1470.8116806716. The cubic root of 2163287 is about 129.3316187879.

Adding to 2163287 its reverse (7823612), we get a palindrome (9986899).

The spelling of 2163287 in words is "two million, one hundred sixty-three thousand, two hundred eighty-seven".