6889210289 has 4 divisors (see below), whose sum is σ = 7419149556. Its totient is φ = 6359271024.

The previous prime is 6889210283. The next prime is 6889210313. The reversal of 6889210289 is 9820129886.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 869778064 + 6019432225 = 29492^2 + 77585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6889210289 is a prime.

It is a super-2 number, since 2×6889210289² = 94922436812126927042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6889210289.

It is not an unprimeable number, because it can be changed into a prime (6889210283) 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 3 ways as a sum of consecutive naturals, for example, 264969614 + ... + 264969639.

It is an arithmetic number, because the mean of its divisors is an integer number (1854787389).

Almost surely, 2^6889210289 is an apocalyptic number.

It is an amenable number.

6889210289 is a deficient number, since it is larger than the sum of its proper divisors (529939267).

6889210289 is a wasteful number, since it uses less digits than its factorization.

6889210289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529939266.

The product of its (nonzero) digits is 995328, while the sum is 53.

The square root of 6889210289 is about 83001.2667915376. The cubic root of 6889210289 is about 1902.7854149337.

The spelling of 6889210289 in words is "six billion, eight hundred eighty-nine million, two hundred ten thousand, two hundred eighty-nine".