8043945 has 64 divisors (see below), whose sum is σ = 16257024. Its totient is φ = 3306240.

The previous prime is 8043929. The next prime is 8043949. The reversal of 8043945 is 5493408.

It is not a de Polignac number, because 8043945 - 2⁴ = 8043929 is a prime.

8043945 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8043949) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 96874 + ... + 96956.

It is an arithmetic number, because the mean of its divisors is an integer number (254016).

Almost surely, 2^8043945 is an apocalyptic number.

It is an amenable number.

8043945 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

8043945 is a wasteful number, since it uses less digits than its factorization.

8043945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 8043945 is about 2836.1849375526. The cubic root of 8043945 is about 200.3655398295.

The spelling of 8043945 in words is "eight million, forty-three thousand, nine hundred forty-five".