8243791 has 2 divisors, whose sum is σ = 8243792. Its totient is φ = 8243790.

The previous prime is 8243761. The next prime is 8243813. The reversal of 8243791 is 1973428.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8243791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8243731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4121895 + 4121896.

It is an arithmetic number, because the mean of its divisors is an integer number (4121896).

Almost surely, 2^8243791 is an apocalyptic number.

8243791 is a deficient number, since it is larger than the sum of its proper divisors (1).

8243791 is an equidigital number, since it uses as much as digits as its factorization.

8243791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 8243791 is about 2871.2002716634. The cubic root of 8243791 is about 202.0112972801.

It can be divided in two parts, 82437 and 91, that added together give a palindrome (82528).

The spelling of 8243791 in words is "eight million, two hundred forty-three thousand, seven hundred ninety-one".