2164317 has 4 divisors (see below), whose sum is σ = 2885760. Its totient is φ = 1442876.

The previous prime is 2164313. The next prime is 2164367. The reversal of 2164317 is 7134612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2164317 - 2² = 2164313 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360717 + ... + 360722.

It is an arithmetic number, because the mean of its divisors is an integer number (721440).

2^2164317 is an apocalyptic number.

It is an amenable number.

2164317 is a deficient number, since it is larger than the sum of its proper divisors (721443).

2164317 is an equidigital number, since it uses as much as digits as its factorization.

2164317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721442.

The product of its digits is 1008, while the sum is 24.

The square root of 2164317 is about 1471.1617858006. The cubic root of 2164317 is about 129.3521416359.

Adding to 2164317 its reverse (7134612), we get a palindrome (9298929).

The spelling of 2164317 in words is "two million, one hundred sixty-four thousand, three hundred seventeen".