6781673 has 8 divisors (see below), whose sum is σ = 6945792. Its totient is φ = 6619536.

The previous prime is 6781667. The next prime is 6781699. The reversal of 6781673 is 3761876.

6781673 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6781673 - 2⁶ = 6781609 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (6781603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8111 + ... + 8907.

It is an arithmetic number, because the mean of its divisors is an integer number (868224).

Almost surely, 2^6781673 is an apocalyptic number.

It is an amenable number.

6781673 is a deficient number, since it is larger than the sum of its proper divisors (164119).

6781673 is a wasteful number, since it uses less digits than its factorization.

6781673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991.

The product of its digits is 42336, while the sum is 38.

The square root of 6781673 is about 2604.1645493325. The cubic root of 6781673 is about 189.2832924880.

The spelling of 6781673 in words is "six million, seven hundred eighty-one thousand, six hundred seventy-three".