2668817 has 4 divisors (see below), whose sum is σ = 2673216. Its totient is φ = 2664420.

The previous prime is 2668793. The next prime is 2668829. The reversal of 2668817 is 7188662.

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 2668817 - 2¹² = 2664721 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668837) 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, 1109 + ... + 2562.

It is an arithmetic number, because the mean of its divisors is an integer number (668304).

2^2668817 is an apocalyptic number.

It is an amenable number.

2668817 is a deficient number, since it is larger than the sum of its proper divisors (4399).

2668817 is an equidigital number, since it uses as much as digits as its factorization.

2668817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4398.

The product of its digits is 32256, while the sum is 38.

The square root of 2668817 is about 1633.6514316096. The cubic root of 2668817 is about 138.7095188022.

The spelling of 2668817 in words is "two million, six hundred sixty-eight thousand, eight hundred seventeen".