8713685690 has 8 divisors (see below), whose sum is σ = 15684634260. Its totient is φ = 3485474272.

The previous prime is 8713685689. The next prime is 8713685707. The reversal of 8713685690 is 965863178.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8656999849 + 56685841 = 93043^2 + 7529^2 .

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

It is a super-2 number, since 2×8713685690² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435684275 + ... + 435684294.

Almost surely, 2^8713685690 is an apocalyptic number.

8713685690 is a deficient number, since it is larger than the sum of its proper divisors (6970948570).

8713685690 is a wasteful number, since it uses less digits than its factorization.

8713685690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871368576.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 8713685690 is about 93347.1247012997. The cubic root of 8713685690 is about 2057.7879993726.

The spelling of 8713685690 in words is "eight billion, seven hundred thirteen million, six hundred eighty-five thousand, six hundred ninety".