8487443 has 4 divisors (see below), whose sum is σ = 8493840. Its totient is φ = 8481048.

The previous prime is 8487421. The next prime is 8487527. The reversal of 8487443 is 3447848.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8487443 - 2⁶ = 8487379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8487397 and 8487406.

It is not an unprimeable number, because it can be changed into a prime (8480443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380 + ... + 4137.

It is an arithmetic number, because the mean of its divisors is an integer number (2123460).

Almost surely, 2^8487443 is an apocalyptic number.

8487443 is a deficient number, since it is larger than the sum of its proper divisors (6397).

8487443 is a wasteful number, since it uses less digits than its factorization.

8487443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6396.

The product of its digits is 86016, while the sum is 38.

The square root of 8487443 is about 2913.3216437599. The cubic root of 8487443 is about 203.9822088163.

The spelling of 8487443 in words is "eight million, four hundred eighty-seven thousand, four hundred forty-three".