6856937 has 2 divisors, whose sum is σ = 6856938. Its totient is φ = 6856936.

The previous prime is 6856931. The next prime is 6856973. The reversal of 6856937 is 7396586.

Together with next prime (6856973) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3936256 + 2920681 = 1984^2 + 1709^2 .

It is a cyclic number.

It is not a de Polignac number, because 6856937 - 2⁶ = 6856873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6856931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3428468 + 3428469.

It is an arithmetic number, because the mean of its divisors is an integer number (3428469).

Almost surely, 2^6856937 is an apocalyptic number.

It is an amenable number.

6856937 is a deficient number, since it is larger than the sum of its proper divisors (1).

6856937 is an equidigital number, since it uses as much as digits as its factorization.

6856937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The square root of 6856937 is about 2618.5753760394. The cubic root of 6856937 is about 189.9809491517.

The spelling of 6856937 in words is "six million, eight hundred fifty-six thousand, nine hundred thirty-seven".