6881893 has 2 divisors, whose sum is σ = 6881894. Its totient is φ = 6881892.

The previous prime is 6881873. The next prime is 6881939. The reversal of 6881893 is 3981886.

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., 6880129 + 1764 = 2623^2 + 42^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6881893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6881803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3440946 + 3440947.

It is an arithmetic number, because the mean of its divisors is an integer number (3440947).

Almost surely, 2^6881893 is an apocalyptic number.

It is an amenable number.

6881893 is a deficient number, since it is larger than the sum of its proper divisors (1).

6881893 is an equidigital number, since it uses as much as digits as its factorization.

6881893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 43.

The square root of 6881893 is about 2623.3362346447. The cubic root of 6881893 is about 190.2111502996.

The spelling of 6881893 in words is "six million, eight hundred eighty-one thousand, eight hundred ninety-three".