6870689 has 4 divisors (see below), whose sum is σ = 7852224. Its totient is φ = 5889156.

The previous prime is 6870683. The next prime is 6870691. The reversal of 6870689 is 9860786.

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 6870689 - 2⁴ = 6870673 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6870683) 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, 490757 + ... + 490770.

It is an arithmetic number, because the mean of its divisors is an integer number (1963056).

Almost surely, 2^6870689 is an apocalyptic number.

It is an amenable number.

6870689 is a deficient number, since it is larger than the sum of its proper divisors (981535).

6870689 is an equidigital number, since it uses as much as digits as its factorization.

6870689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981534.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 6870689 is about 2621.1999160690. The cubic root of 6870689 is about 190.1078704174.

The spelling of 6870689 in words is "six million, eight hundred seventy thousand, six hundred eighty-nine".