8683643 has 4 divisors (see below), whose sum is σ = 8697480. Its totient is φ = 8669808.

The previous prime is 8683639. The next prime is 8683657. The reversal of 8683643 is 3463868.

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

It is a cyclic number.

It is not a de Polignac number, because 8683643 - 2² = 8683639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8683597 and 8683606.

It is not an unprimeable number, because it can be changed into a prime (8683603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5930 + ... + 7247.

It is an arithmetic number, because the mean of its divisors is an integer number (2174370).

Almost surely, 2^8683643 is an apocalyptic number.

8683643 is a deficient number, since it is larger than the sum of its proper divisors (13837).

8683643 is a wasteful number, since it uses less digits than its factorization.

8683643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13836.

The product of its digits is 82944, while the sum is 38.

The square root of 8683643 is about 2946.8021650596. The cubic root of 8683643 is about 205.5420357096.

The spelling of 8683643 in words is "eight million, six hundred eighty-three thousand, six hundred forty-three".