6889036789 has 2 divisors, whose sum is σ = 6889036790. Its totient is φ = 6889036788.

The previous prime is 6889036757. The next prime is 6889036793. The reversal of 6889036789 is 9876309886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3772047889 + 3116988900 = 61417^2 + 55830^2 .

It is a cyclic number.

It is not a de Polignac number, because 6889036789 - 2⁵ = 6889036757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6889036789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6889036799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3444518394 + 3444518395.

It is an arithmetic number, because the mean of its divisors is an integer number (3444518395).

Almost surely, 2^6889036789 is an apocalyptic number.

It is an amenable number.

6889036789 is a deficient number, since it is larger than the sum of its proper divisors (1).

6889036789 is an equidigital number, since it uses as much as digits as its factorization.

6889036789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31352832, while the sum is 64.

The square root of 6889036789 is about 83000.2216201861. The cubic root of 6889036789 is about 1902.7694413544.

The spelling of 6889036789 in words is "six billion, eight hundred eighty-nine million, thirty-six thousand, seven hundred eighty-nine".