8573443 has 2 divisors, whose sum is σ = 8573444. Its totient is φ = 8573442.

The previous prime is 8573441. The next prime is 8573447. The reversal of 8573443 is 3443758.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8573443 - 2¹ = 8573441 is a prime.

Together with 8573441, it forms a pair of twin primes.

8573443 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8573399 and 8573408.

It is not a weakly prime, because it can be changed into another prime (8573441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4286721 + 4286722.

It is an arithmetic number, because the mean of its divisors is an integer number (4286722).

Almost surely, 2^8573443 is an apocalyptic number.

8573443 is a deficient number, since it is larger than the sum of its proper divisors (1).

8573443 is an equidigital number, since it uses as much as digits as its factorization.

8573443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 34.

The square root of 8573443 is about 2928.0442278080. The cubic root of 8573443 is about 204.6688526376.

The spelling of 8573443 in words is "eight million, five hundred seventy-three thousand, four hundred forty-three".