7938943 has 4 divisors (see below), whose sum is σ = 7953280. Its totient is φ = 7924608.

The previous prime is 7938929. The next prime is 7938977. The reversal of 7938943 is 3498397.

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

It is a cyclic number.

It is not a de Polignac number, because 7938943 - 2²¹ = 5841791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7938943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7938443) 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, 6303 + ... + 7456.

It is an arithmetic number, because the mean of its divisors is an integer number (1988320).

Almost surely, 2^7938943 is an apocalyptic number.

7938943 is a deficient number, since it is larger than the sum of its proper divisors (14337).

7938943 is a wasteful number, since it uses less digits than its factorization.

7938943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14336.

The product of its digits is 163296, while the sum is 43.

The square root of 7938943 is about 2817.6129968468. The cubic root of 7938943 is about 199.4898917205.

The spelling of 7938943 in words is "seven million, nine hundred thirty-eight thousand, nine hundred forty-three".