8642443 has 8 divisors (see below), whose sum is σ = 9190368. Its totient is φ = 8098944.

The previous prime is 8642429. The next prime is 8642449. The reversal of 8642443 is 3442468.

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 8642443 - 2¹³ = 8634251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8642449) 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, 3505 + ... + 5437.

It is an arithmetic number, because the mean of its divisors is an integer number (1148796).

Almost surely, 2^8642443 is an apocalyptic number.

8642443 is a deficient number, since it is larger than the sum of its proper divisors (547925).

8642443 is a wasteful number, since it uses less digits than its factorization.

8642443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213.

The product of its digits is 18432, while the sum is 31.

The square root of 8642443 is about 2939.8032247074. The cubic root of 8642443 is about 205.2164519233.

The spelling of 8642443 in words is "eight million, six hundred forty-two thousand, four hundred forty-three".