6781063 has 2 divisors, whose sum is σ = 6781064. Its totient is φ = 6781062.

The previous prime is 6781051. The next prime is 6781087. The reversal of 6781063 is 3601876.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6781063 - 2⁹ = 6780551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6781013) 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, 3390531 + 3390532.

It is an arithmetic number, because the mean of its divisors is an integer number (3390532).

Almost surely, 2^6781063 is an apocalyptic number.

6781063 is a deficient number, since it is larger than the sum of its proper divisors (1).

6781063 is an equidigital number, since it uses as much as digits as its factorization.

6781063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 6781063 is about 2604.0474266034. The cubic root of 6781063 is about 189.2776170806.

The spelling of 6781063 in words is "six million, seven hundred eighty-one thousand, sixty-three".