8394943 has 2 divisors, whose sum is σ = 8394944. Its totient is φ = 8394942.

The previous prime is 8394917. The next prime is 8394983. The reversal of 8394943 is 3494938.

It is an a-pointer prime, because the next prime (8394983) can be obtained adding 8394943 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8394943 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8394896 and 8394905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8394913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4197471 + 4197472.

It is an arithmetic number, because the mean of its divisors is an integer number (4197472).

Almost surely, 2^8394943 is an apocalyptic number.

8394943 is a deficient number, since it is larger than the sum of its proper divisors (1).

8394943 is an equidigital number, since it uses as much as digits as its factorization.

8394943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 40.

The square root of 8394943 is about 2897.4028025112. The cubic root of 8394943 is about 203.2384701870.

The spelling of 8394943 in words is "eight million, three hundred ninety-four thousand, nine hundred forty-three".