6781263 has 4 divisors (see below), whose sum is σ = 9041688. Its totient is φ = 4520840.

The previous prime is 6781253. The next prime is 6781303. The reversal of 6781263 is 3621876.

6781263 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6781263 - 2⁵ = 6781231 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6781223) 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, 1130208 + ... + 1130213.

It is an arithmetic number, because the mean of its divisors is an integer number (2260422).

Almost surely, 2^6781263 is an apocalyptic number.

6781263 is a deficient number, since it is larger than the sum of its proper divisors (2260425).

6781263 is a wasteful number, since it uses less digits than its factorization.

6781263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260424.

The product of its digits is 12096, while the sum is 33.

The square root of 6781263 is about 2604.0858280786. The cubic root of 6781263 is about 189.2794779074.

The spelling of 6781263 in words is "six million, seven hundred eighty-one thousand, two hundred sixty-three".