6781383 has 12 divisors (see below), whose sum is σ = 11194768. Its totient is φ = 3875040.

The previous prime is 6781381. The next prime is 6781387. The reversal of 6781383 is 3831876.

6781383 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6781383 - 2¹ = 6781381 is a prime.

It is a super-4 number, since 4×6781383⁴ (a number of 28 digits) contains 4444 as substring.

It is a Duffinian number.

6781383 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6781381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53758 + ... + 53883.

Almost surely, 2^6781383 is an apocalyptic number.

6781383 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

6781383 is a deficient number, since it is larger than the sum of its proper divisors (4413385).

6781383 is a wasteful number, since it uses less digits than its factorization.

6781383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107654 (or 107651 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 6781383 is about 2604.1088686919. The cubic root of 6781383 is about 189.2805943859.

It can be divided in two parts, 67813 and 83, that added together give a triangular number (67896 = T₃₆₈).

The spelling of 6781383 in words is "six million, seven hundred eighty-one thousand, three hundred eighty-three".