8390312057 has 2 divisors, whose sum is σ = 8390312058. Its totient is φ = 8390312056.

The previous prime is 8390312033. The next prime is 8390312081. The reversal of 8390312057 is 7502130938.

8390312057 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (8390312033) and next prime (8390312081).

It can be written as a sum of positive squares in only one way, i.e., 8081290816 + 309021241 = 89896^2 + 17579^2 .

It is a cyclic number.

It is not a de Polignac number, because 8390312057 - 2¹⁴ = 8390295673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8390312057.

It is not a weakly prime, because it can be changed into another prime (8390311057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4195156028 + 4195156029.

It is an arithmetic number, because the mean of its divisors is an integer number (4195156029).

Almost surely, 2^8390312057 is an apocalyptic number.

It is an amenable number.

8390312057 is a deficient number, since it is larger than the sum of its proper divisors (1).

8390312057 is an equidigital number, since it uses as much as digits as its factorization.

8390312057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 8390312057 is about 91598.6465893465. The cubic root of 8390312057 is about 2032.0109217314.

The spelling of 8390312057 in words is "eight billion, three hundred ninety million, three hundred twelve thousand, fifty-seven".