8791000247 has 2 divisors, whose sum is σ = 8791000248. Its totient is φ = 8791000246.

The previous prime is 8791000217. The next prime is 8791000259. The reversal of 8791000247 is 7420001978.

8791000247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8791000247 - 2¹⁰ = 8790999223 is a prime.

It is a super-2 number, since 2×8791000247² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8791000247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8791000217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4395500123 + 4395500124.

It is an arithmetic number, because the mean of its divisors is an integer number (4395500124).

Almost surely, 2^8791000247 is an apocalyptic number.

8791000247 is a deficient number, since it is larger than the sum of its proper divisors (1).

8791000247 is an equidigital number, since it uses as much as digits as its factorization.

8791000247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 8791000247 is about 93760.3340811028. The cubic root of 8791000247 is about 2063.8561828131.

The spelling of 8791000247 in words is "eight billion, seven hundred ninety-one million, two hundred forty-seven", and thus it is an aban number.