8387243 has 2 divisors, whose sum is σ = 8387244. Its totient is φ = 8387242.

The previous prime is 8387231. The next prime is 8387251. The reversal of 8387243 is 3427838.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8387243 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 8 + 3² + 8⁷ + 7⁸ + 2¹⁹ + 4⁴ + 3⁶ .

It is not a weakly prime, because it can be changed into another prime (8387543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4193621 + 4193622.

It is an arithmetic number, because the mean of its divisors is an integer number (4193622).

Almost surely, 2^8387243 is an apocalyptic number.

8387243 is a deficient number, since it is larger than the sum of its proper divisors (1).

8387243 is an equidigital number, since it uses as much as digits as its factorization.

8387243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 35.

The square root of 8387243 is about 2896.0737214374. The cubic root of 8387243 is about 203.1763131270.

The spelling of 8387243 in words is "eight million, three hundred eighty-seven thousand, two hundred forty-three".