2660003 has 2 divisors, whose sum is σ = 2660004. Its totient is φ = 2660002.

The previous prime is 2659999. The next prime is 2660011. The reversal of 2660003 is 3000662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2660003 - 2² = 2659999 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2660303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330001 + 1330002.

It is an arithmetic number, because the mean of its divisors is an integer number (1330002).

2^2660003 is an apocalyptic number.

2660003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660003 is an equidigital number, since it uses as much as digits as its factorization.

2660003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2660003 is about 1630.9515627388. The cubic root of 2660003 is about 138.5566503125.

Adding to 2660003 its reverse (3000662), we get a palindrome (5660665).

The spelling of 2660003 in words is "two million, six hundred sixty thousand, three".