6706689 has 8 divisors (see below), whose sum is σ = 9755232. Its totient is φ = 4064640.

The previous prime is 6706681. The next prime is 6706699. The reversal of 6706689 is 9866076.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6706689 - 2³ = 6706681 is a prime.

6706689 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6706689.

It is not an unprimeable number, because it can be changed into a prime (6706681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101584 + ... + 101649.

It is an arithmetic number, because the mean of its divisors is an integer number (1219404).

Almost surely, 2^6706689 is an apocalyptic number.

It is an amenable number.

6706689 is a deficient number, since it is larger than the sum of its proper divisors (3048543).

6706689 is a wasteful number, since it uses less digits than its factorization.

6706689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203247.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 6706689 is about 2589.7275918521. The cubic root of 6706689 is about 188.5830791864.

The spelling of 6706689 in words is "six million, seven hundred six thousand, six hundred eighty-nine".