6805489 has 2 divisors, whose sum is σ = 6805490. Its totient is φ = 6805488.

The previous prime is 6805483. The next prime is 6805499. The reversal of 6805489 is 9845086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6718464 + 87025 = 2592^2 + 295^2 .

It is a cyclic number.

It is not a de Polignac number, because 6805489 - 2¹¹ = 6803441 is a prime.

It is not a weakly prime, because it can be changed into another prime (6805483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3402744 + 3402745.

It is an arithmetic number, because the mean of its divisors is an integer number (3402745).

Almost surely, 2^6805489 is an apocalyptic number.

It is an amenable number.

6805489 is a deficient number, since it is larger than the sum of its proper divisors (1).

6805489 is an equidigital number, since it uses as much as digits as its factorization.

6805489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 6805489 is about 2608.7332174832. The cubic root of 6805489 is about 189.5046097602.

The spelling of 6805489 in words is "six million, eight hundred five thousand, four hundred eighty-nine".