6898891 has 2 divisors, whose sum is σ = 6898892. Its totient is φ = 6898890.

The previous prime is 6898883. The next prime is 6898901. The reversal of 6898891 is 1988986.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6898891 - 2³ = 6898883 is a prime.

It is not a weakly prime, because it can be changed into another prime (6898841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3449445 + 3449446.

It is an arithmetic number, because the mean of its divisors is an integer number (3449446).

Almost surely, 2^6898891 is an apocalyptic number.

6898891 is a deficient number, since it is larger than the sum of its proper divisors (1).

6898891 is an equidigital number, since it uses as much as digits as its factorization.

6898891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 49.

The square root of 6898891 is about 2626.5740042877. The cubic root of 6898891 is about 190.3676261808.

The spelling of 6898891 in words is "six million, eight hundred ninety-eight thousand, eight hundred ninety-one".