6888857 has 2 divisors, whose sum is σ = 6888858. Its totient is φ = 6888856.

The previous prime is 6888841. The next prime is 6888877. The reversal of 6888857 is 7588886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6885376 + 3481 = 2624^2 + 59^2 .

It is a cyclic number.

It is not a de Polignac number, because 6888857 - 2⁴ = 6888841 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6888877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3444428 + 3444429.

It is an arithmetic number, because the mean of its divisors is an integer number (3444429).

Almost surely, 2^6888857 is an apocalyptic number.

It is an amenable number.

6888857 is a deficient number, since it is larger than the sum of its proper divisors (1).

6888857 is an equidigital number, since it uses as much as digits as its factorization.

6888857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 860160, while the sum is 50.

The square root of 6888857 is about 2624.6632164908. The cubic root of 6888857 is about 190.2752888484.

The spelling of 6888857 in words is "six million, eight hundred eighty-eight thousand, eight hundred fifty-seven".