6881851 has 2 divisors, whose sum is σ = 6881852. Its totient is φ = 6881850.

The previous prime is 6881843. The next prime is 6881869. The reversal of 6881851 is 1581886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6881851 - 2³ = 6881843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6881851.

It is not a weakly prime, because it can be changed into another prime (6881351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3440925 + 3440926.

It is an arithmetic number, because the mean of its divisors is an integer number (3440926).

Almost surely, 2^6881851 is an apocalyptic number.

6881851 is a deficient number, since it is larger than the sum of its proper divisors (1).

6881851 is an equidigital number, since it uses as much as digits as its factorization.

6881851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15360, while the sum is 37.

The square root of 6881851 is about 2623.3282295588. The cubic root of 6881851 is about 190.2107633477.

The spelling of 6881851 in words is "six million, eight hundred eighty-one thousand, eight hundred fifty-one".