8347540057 has 2 divisors, whose sum is σ = 8347540058. Its totient is φ = 8347540056.

The previous prime is 8347540027. The next prime is 8347540063. The reversal of 8347540057 is 7500457438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4716392976 + 3631147081 = 68676^2 + 60259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8347540057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8347539995 and 8347540022.

It is not a weakly prime, because it can be changed into another prime (8347540027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4173770028 + 4173770029.

It is an arithmetic number, because the mean of its divisors is an integer number (4173770029).

Almost surely, 2^8347540057 is an apocalyptic number.

It is an amenable number.

8347540057 is a deficient number, since it is larger than the sum of its proper divisors (1).

8347540057 is an equidigital number, since it uses as much as digits as its factorization.

8347540057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 470400, while the sum is 43.

The square root of 8347540057 is about 91364.8732117546. The cubic root of 8347540057 is about 2028.5521199433.

The spelling of 8347540057 in words is "eight billion, three hundred forty-seven million, five hundred forty thousand, fifty-seven".