8443772093 has 2 divisors, whose sum is σ = 8443772094. Its totient is φ = 8443772092.

The previous prime is 8443772087. The next prime is 8443772107. The reversal of 8443772093 is 3902773448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5144188729 + 3299583364 = 71723^2 + 57442^2 .

It is a cyclic number.

It is not a de Polignac number, because 8443772093 - 2¹⁰ = 8443771069 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8443772023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4221886046 + 4221886047.

It is an arithmetic number, because the mean of its divisors is an integer number (4221886047).

Almost surely, 2^8443772093 is an apocalyptic number.

It is an amenable number.

8443772093 is a deficient number, since it is larger than the sum of its proper divisors (1).

8443772093 is an equidigital number, since it uses as much as digits as its factorization.

8443772093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 47.

The square root of 8443772093 is about 91889.9999619110. Note that the first 4 decimals coincide. The cubic root of 8443772093 is about 2036.3175343096.

The spelling of 8443772093 in words is "eight billion, four hundred forty-three million, seven hundred seventy-two thousand, ninety-three".