8420046277 has 2 divisors, whose sum is σ = 8420046278. Its totient is φ = 8420046276.

The previous prime is 8420046253. The next prime is 8420046317. The reversal of 8420046277 is 7726400248.

It is an a-pointer prime, because the next prime (8420046317) can be obtained adding 8420046277 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7309224036 + 1110822241 = 85494^2 + 33329^2 .

It is a cyclic number.

It is not a de Polignac number, because 8420046277 - 2¹¹ = 8420044229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8420046577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4210023138 + 4210023139.

It is an arithmetic number, because the mean of its divisors is an integer number (4210023139).

Almost surely, 2^8420046277 is an apocalyptic number.

It is an amenable number.

8420046277 is a deficient number, since it is larger than the sum of its proper divisors (1).

8420046277 is an equidigital number, since it uses as much as digits as its factorization.

8420046277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 8420046277 is about 91760.8101370078. The cubic root of 8420046277 is about 2034.4084895300.

The spelling of 8420046277 in words is "eight billion, four hundred twenty million, forty-six thousand, two hundred seventy-seven".