6891367 has 4 divisors (see below), whose sum is σ = 7875856. Its totient is φ = 5906880.

The previous prime is 6891337. The next prime is 6891383. The reversal of 6891367 is 7631986.

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

It is not a de Polignac number, because 6891367 - 2¹⁹ = 6367079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6891317) 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 in 3 ways as a sum of consecutive naturals, for example, 492234 + ... + 492247.

It is an arithmetic number, because the mean of its divisors is an integer number (1968964).

Almost surely, 2^6891367 is an apocalyptic number.

6891367 is a deficient number, since it is larger than the sum of its proper divisors (984489).

6891367 is an equidigital number, since it uses as much as digits as its factorization.

6891367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984488.

The product of its digits is 54432, while the sum is 40.

The square root of 6891367 is about 2625.1413295288. The cubic root of 6891367 is about 190.2983953900.

The spelling of 6891367 in words is "six million, eight hundred ninety-one thousand, three hundred sixty-seven".