8947646453 has 2 divisors, whose sum is σ = 8947646454. Its totient is φ = 8947646452.

The previous prime is 8947646447. The next prime is 8947646473. The reversal of 8947646453 is 3546467498.

8947646453 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6767036644 + 2180609809 = 82262^2 + 46697^2 .

It is a cyclic number.

It is not a de Polignac number, because 8947646453 - 2⁴ = 8947646437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8947646473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4473823226 + 4473823227.

It is an arithmetic number, because the mean of its divisors is an integer number (4473823227).

Almost surely, 2^8947646453 is an apocalyptic number.

It is an amenable number.

8947646453 is a deficient number, since it is larger than the sum of its proper divisors (1).

8947646453 is an equidigital number, since it uses as much as digits as its factorization.

8947646453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17418240, while the sum is 56.

The square root of 8947646453 is about 94591.9999418555. Note that the first 4 decimals coincide. The cubic root of 8947646453 is about 2076.0426523072.

The spelling of 8947646453 in words is "eight billion, nine hundred forty-seven million, six hundred forty-six thousand, four hundred fifty-three".