8040943 has 4 divisors (see below), whose sum is σ = 8116200. Its totient is φ = 7965688.

The previous prime is 8040937. The next prime is 8040947. The reversal of 8040943 is 3490408.

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-8040943 is a prime.

It is a Duffinian number.

8040943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8040947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37468 + ... + 37681.

It is an arithmetic number, because the mean of its divisors is an integer number (2029050).

Almost surely, 2^8040943 is an apocalyptic number.

8040943 is a deficient number, since it is larger than the sum of its proper divisors (75257).

8040943 is a wasteful number, since it uses less digits than its factorization.

8040943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75256.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 8040943 is about 2835.6556561050. The cubic root of 8040943 is about 200.3406112572.

The spelling of 8040943 in words is "eight million, forty thousand, nine hundred forty-three".