2163385 has 16 divisors (see below), whose sum is σ = 2998656. Its totient is φ = 1467648.

The previous prime is 2163361. The next prime is 2163401. The reversal of 2163385 is 5833612.

It is not a de Polignac number, because 2163385 - 2¹¹ = 2161337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3682 + ... + 4228.

It is an arithmetic number, because the mean of its divisors is an integer number (187416).

2^2163385 is an apocalyptic number.

It is an amenable number.

2163385 is a deficient number, since it is larger than the sum of its proper divisors (835271).

2163385 is a wasteful number, since it uses less digits than its factorization.

2163385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672.

The product of its digits is 4320, while the sum is 28.

The square root of 2163385 is about 1470.8449952323. The cubic root of 2163385 is about 129.3335717276. Note that the first 3 decimals are identical.

Adding to 2163385 its reverse (5833612), we get a palindrome (7996997).

The spelling of 2163385 in words is "two million, one hundred sixty-three thousand, three hundred eighty-five".