8445043 has 4 divisors (see below), whose sum is σ = 8464720. Its totient is φ = 8425368.

The previous prime is 8445029. The next prime is 8445049. The reversal of 8445043 is 3405448.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8445043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8445049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9180 + ... + 10057.

It is an arithmetic number, because the mean of its divisors is an integer number (2116180).

Almost surely, 2^8445043 is an apocalyptic number.

8445043 is a deficient number, since it is larger than the sum of its proper divisors (19677).

8445043 is a wasteful number, since it uses less digits than its factorization.

8445043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19676.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 8445043 is about 2906.0356157487. The cubic root of 8445043 is about 203.6419694037.

The spelling of 8445043 in words is "eight million, four hundred forty-five thousand, forty-three".