6881057 has 2 divisors, whose sum is σ = 6881058. Its totient is φ = 6881056.

The previous prime is 6881047. The next prime is 6881081. The reversal of 6881057 is 7501886.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4946176 + 1934881 = 2224^2 + 1391^2 .

It is a cyclic number.

It is not a de Polignac number, because 6881057 - 2⁴ = 6881041 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6881027) 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 as a sum of consecutive naturals, namely, 3440528 + 3440529.

It is an arithmetic number, because the mean of its divisors is an integer number (3440529).

Almost surely, 2^6881057 is an apocalyptic number.

It is an amenable number.

6881057 is a deficient number, since it is larger than the sum of its proper divisors (1).

6881057 is an equidigital number, since it uses as much as digits as its factorization.

6881057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 6881057 is about 2623.1768907186. The cubic root of 6881057 is about 190.2034478181.

The spelling of 6881057 in words is "six million, eight hundred eighty-one thousand, fifty-seven".