2128663 has 2 divisors, whose sum is σ = 2128664. Its totient is φ = 2128662.

The previous prime is 2128649. The next prime is 2128667. The reversal of 2128663 is 3668212.

2128663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2128663 - 2⁵ = 2128631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2128667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064331 + 1064332.

It is an arithmetic number, because the mean of its divisors is an integer number (1064332).

2^2128663 is an apocalyptic number.

2128663 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128663 is an equidigital number, since it uses as much as digits as its factorization.

2128663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

The square root of 2128663 is about 1458.9938313783. The cubic root of 2128663 is about 128.6379085355.

The spelling of 2128663 in words is "two million, one hundred twenty-eight thousand, six hundred sixty-three".