2768663 has 2 divisors, whose sum is σ = 2768664. Its totient is φ = 2768662.

The previous prime is 2768657. The next prime is 2768677. The reversal of 2768663 is 3668672.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2768663 - 2⁸ = 2768407 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2768683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1384331 + 1384332.

It is an arithmetic number, because the mean of its divisors is an integer number (1384332).

2^2768663 is an apocalyptic number.

2768663 is a deficient number, since it is larger than the sum of its proper divisors (1).

2768663 is an equidigital number, since it uses as much as digits as its factorization.

2768663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 2768663 is about 1663.9299865078. The cubic root of 2768663 is about 140.4181883780.

Subtracting 2768663 from its reverse (3668672), we obtain a palindrome (900009).

The spelling of 2768663 in words is "two million, seven hundred sixty-eight thousand, six hundred sixty-three".