6889481 has 2 divisors, whose sum is σ = 6889482. Its totient is φ = 6889480.

The previous prime is 6889453. The next prime is 6889483. The reversal of 6889481 is 1849886.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4687225 + 2202256 = 2165^2 + 1484^2 .

It is a cyclic number.

It is not a de Polignac number, because 6889481 - 2²² = 2695177 is a prime.

It is a super-2 number, since 2×6889481² = 94929896898722, which contains 22 as substring.

Together with 6889483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6889483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3444740 + 3444741.

It is an arithmetic number, because the mean of its divisors is an integer number (3444741).

Almost surely, 2^6889481 is an apocalyptic number.

It is an amenable number.

6889481 is a deficient number, since it is larger than the sum of its proper divisors (1).

6889481 is an equidigital number, since it uses as much as digits as its factorization.

6889481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 44.

The square root of 6889481 is about 2624.7820861931. The cubic root of 6889481 is about 190.2810337877.

The spelling of 6889481 in words is "six million, eight hundred eighty-nine thousand, four hundred eighty-one".