6898729865 has 8 divisors (see below), whose sum is σ = 8285552448. Its totient is φ = 5514266160.

The previous prime is 6898729853. The next prime is 6898729867. The reversal of 6898729865 is 5689278986.

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

It is not a de Polignac number, because 6898729865 - 2¹⁰ = 6898728841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6898729795 and 6898729804.

It is not an unprimeable number, because it can be changed into a prime (6898729867) 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, 583277 + ... + 594986.

It is an arithmetic number, because the mean of its divisors is an integer number (1035694056).

Almost surely, 2^6898729865 is an apocalyptic number.

It is an amenable number.

6898729865 is a deficient number, since it is larger than the sum of its proper divisors (1386822583).

6898729865 is a wasteful number, since it uses less digits than its factorization.

6898729865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179439.

The product of its digits is 104509440, while the sum is 68.

The square root of 6898729865 is about 83058.5929630403. The cubic root of 6898729865 is about 1903.6614405243.

The spelling of 6898729865 in words is "six billion, eight hundred ninety-eight million, seven hundred twenty-nine thousand, eight hundred sixty-five".