8440043107 has 2 divisors, whose sum is σ = 8440043108. Its totient is φ = 8440043106.

The previous prime is 8440043071. The next prime is 8440043147. The reversal of 8440043107 is 7013400448.

Together with previous prime (8440043071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8440043107 is a prime.

It is not a weakly prime, because it can be changed into another prime (8440043147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4220021553 + 4220021554.

It is an arithmetic number, because the mean of its divisors is an integer number (4220021554).

Almost surely, 2^8440043107 is an apocalyptic number.

8440043107 is a deficient number, since it is larger than the sum of its proper divisors (1).

8440043107 is an equidigital number, since it uses as much as digits as its factorization.

8440043107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 8440043107 is about 91869.7072325802. The cubic root of 8440043107 is about 2036.0177268467.

The spelling of 8440043107 in words is "eight billion, four hundred forty million, forty-three thousand, one hundred seven".