8243001686 has 8 divisors (see below), whose sum is σ = 13015265880. Its totient is φ = 3904579728.

The previous prime is 8243001653. The next prime is 8243001709. The reversal of 8243001686 is 6861003428.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 216921097 = 8243001686 / (8 + 2 + 4 + 3 + 0 + 0 + 1 + 6 + 8 + 6).

It is a congruent number.

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, 108460511 + ... + 108460586.

It is an arithmetic number, because the mean of its divisors is an integer number (1626908235).

Almost surely, 2^8243001686 is an apocalyptic number.

8243001686 is a deficient number, since it is larger than the sum of its proper divisors (4772264194).

8243001686 is a wasteful number, since it uses less digits than its factorization.

8243001686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216921118.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 8243001686 is about 90790.9779989179. The cubic root of 8243001686 is about 2020.0484978390.

The spelling of 8243001686 in words is "eight billion, two hundred forty-three million, one thousand, six hundred eighty-six".