8206427897 has 2 divisors, whose sum is σ = 8206427898. Its totient is φ = 8206427896.

The previous prime is 8206427893. The next prime is 8206427909. The reversal of 8206427897 is 7987246028.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7101264361 + 1105163536 = 84269^2 + 33244^2 .

It is a cyclic number.

It is not a de Polignac number, because 8206427897 - 2² = 8206427893 is a prime.

It is a super-3 number, since 3×8206427897³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (8206427893) 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, 4103213948 + 4103213949.

It is an arithmetic number, because the mean of its divisors is an integer number (4103213949).

Almost surely, 2^8206427897 is an apocalyptic number.

It is an amenable number.

8206427897 is a deficient number, since it is larger than the sum of its proper divisors (1).

8206427897 is an equidigital number, since it uses as much as digits as its factorization.

8206427897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The square root of 8206427897 is about 90589.3365523780. The cubic root of 8206427897 is about 2017.0564499980.

The spelling of 8206427897 in words is "eight billion, two hundred six million, four hundred twenty-seven thousand, eight hundred ninety-seven".