6785989 has 16 divisors (see below), whose sum is σ = 8186112. Its totient is φ = 5499648.

The previous prime is 6785969. The next prime is 6786037. The reversal of 6785989 is 9895876.

It is not a de Polignac number, because 6785989 - 2⁹ = 6785477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6785929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18007 + ... + 18379.

It is an arithmetic number, because the mean of its divisors is an integer number (511632).

Almost surely, 2^6785989 is an apocalyptic number.

It is an amenable number.

6785989 is a deficient number, since it is larger than the sum of its proper divisors (1400123).

6785989 is a wasteful number, since it uses less digits than its factorization.

6785989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516.

The product of its digits is 1088640, while the sum is 52.

The square root of 6785989 is about 2604.9930902020. The cubic root of 6785989 is about 189.3234386016.

The spelling of 6785989 in words is "six million, seven hundred eighty-five thousand, nine hundred eighty-nine".