8063643 has 8 divisors (see below), whose sum is σ = 12287488. Its totient is φ = 4607784.

The previous prime is 8063641. The next prime is 8063647. The reversal of 8063643 is 3463608.

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

It is not a de Polignac number, because 8063643 - 2¹ = 8063641 is a prime.

It is a Duffinian number.

8063643 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8063643.

It is not an unprimeable number, because it can be changed into a prime (8063641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191971 + ... + 192012.

It is an arithmetic number, because the mean of its divisors is an integer number (1535936).

Almost surely, 2^8063643 is an apocalyptic number.

8063643 is a deficient number, since it is larger than the sum of its proper divisors (4223845).

8063643 is a wasteful number, since it uses less digits than its factorization.

8063643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383993.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 8063643 is about 2839.6554368444. The cubic root of 8063643 is about 200.5289581165.

The spelling of 8063643 in words is "eight million, sixty-three thousand, six hundred forty-three".