6857713 has 2 divisors, whose sum is σ = 6857714. Its totient is φ = 6857712.

The previous prime is 6857707. The next prime is 6857729. The reversal of 6857713 is 3177586.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4986289 + 1871424 = 2233^2 + 1368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6857713 is a prime.

It is not a weakly prime, because it can be changed into another prime (6857743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3428856 + 3428857.

It is an arithmetic number, because the mean of its divisors is an integer number (3428857).

Almost surely, 2^6857713 is an apocalyptic number.

It is an amenable number.

6857713 is a deficient number, since it is larger than the sum of its proper divisors (1).

6857713 is an equidigital number, since it uses as much as digits as its factorization.

6857713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 37.

The square root of 6857713 is about 2618.7235440191. The cubic root of 6857713 is about 189.9881156001.

The spelling of 6857713 in words is "six million, eight hundred fifty-seven thousand, seven hundred thirteen".