6705889 has 4 divisors (see below), whose sum is σ = 6922240. Its totient is φ = 6489540.

The previous prime is 6705887. The next prime is 6705899. The reversal of 6705889 is 9885076.

It is a happy number.

6705889 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6705889 - 2¹ = 6705887 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6705887) 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 in 3 ways as a sum of consecutive naturals, for example, 108129 + ... + 108190.

It is an arithmetic number, because the mean of its divisors is an integer number (1730560).

Almost surely, 2^6705889 is an apocalyptic number.

It is an amenable number.

6705889 is a deficient number, since it is larger than the sum of its proper divisors (216351).

6705889 is a wasteful number, since it uses less digits than its factorization.

6705889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216350.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 6705889 is about 2589.5731308461. The cubic root of 6705889 is about 188.5755805800.

The spelling of 6705889 in words is "six million, seven hundred five thousand, eight hundred eighty-nine".