6856723 has 2 divisors, whose sum is σ = 6856724. Its totient is φ = 6856722.

The previous prime is 6856697. The next prime is 6856757. The reversal of 6856723 is 3276586.

6856723 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6856723 - 2²¹ = 4759571 is a prime.

6856723 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6856123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3428361 + 3428362.

It is an arithmetic number, because the mean of its divisors is an integer number (3428362).

Almost surely, 2^6856723 is an apocalyptic number.

6856723 is a deficient number, since it is larger than the sum of its proper divisors (1).

6856723 is an equidigital number, since it uses as much as digits as its factorization.

6856723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 6856723 is about 2618.5345138073. The cubic root of 6856723 is about 189.9789727423.

The spelling of 6856723 in words is "six million, eight hundred fifty-six thousand, seven hundred twenty-three".