8484447953 has 2 divisors, whose sum is σ = 8484447954. Its totient is φ = 8484447952.

The previous prime is 8484447899. The next prime is 8484447991. The reversal of 8484447953 is 3597444848.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5563369744 + 2921078209 = 74588^2 + 54047^2 .

It is a cyclic number.

It is not a de Polignac number, because 8484447953 - 2³² = 4189480657 is a prime.

It is not a weakly prime, because it can be changed into another prime (8484447353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4242223976 + 4242223977.

It is an arithmetic number, because the mean of its divisors is an integer number (4242223977).

Almost surely, 2^8484447953 is an apocalyptic number.

It is an amenable number.

8484447953 is a deficient number, since it is larger than the sum of its proper divisors (1).

8484447953 is an equidigital number, since it uses as much as digits as its factorization.

8484447953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15482880, while the sum is 56.

The square root of 8484447953 is about 92111.0631411884. The cubic root of 8484447953 is about 2039.5821226122.

The spelling of 8484447953 in words is "eight billion, four hundred eighty-four million, four hundred forty-seven thousand, nine hundred fifty-three".