6989560705 has 8 divisors (see below), whose sum is σ = 8435956392. Its totient is φ = 5559326208.

The previous prime is 6989560703. The next prime is 6989560709. The reversal of 6989560705 is 5070659896.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3450857536 + 3538703169 = 58744^2 + 59487^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6989560705 - 2¹ = 6989560703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6989560703) 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, 4039344 + ... + 4041073.

It is an arithmetic number, because the mean of its divisors is an integer number (1054494549).

Almost surely, 2^6989560705 is an apocalyptic number.

It is an amenable number.

6989560705 is a deficient number, since it is larger than the sum of its proper divisors (1446395687).

6989560705 is a wasteful number, since it uses less digits than its factorization.

6989560705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8080595.

The product of its (nonzero) digits is 4082400, while the sum is 55.

The square root of 6989560705 is about 83603.5926560576. The cubic root of 6989560705 is about 1911.9797738074.

The spelling of 6989560705 in words is "six billion, nine hundred eighty-nine million, five hundred sixty thousand, seven hundred five".