8447997448 has 32 divisors (see below), whose sum is σ = 17288444160. Its totient is φ = 3838121280.

The previous prime is 8447997443. The next prime is 8447997461.

8447997448 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 8447997448.

It is not an unprimeable number, because it can be changed into a prime (8447997443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166186 + ... + 210982.

It is an arithmetic number, because the mean of its divisors is an integer number (540263880).

Almost surely, 2^8447997448 is an apocalyptic number.

8447997448 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

8447997448 is an abundant number, since it is smaller than the sum of its proper divisors (8840446712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8447997448 is a wasteful number, since it uses less digits than its factorization.

8447997448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46957 (or 46953 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 64.

The square root of 8447997448 is about 91912.9884619143. The cubic root of 8447997448 is about 2036.6571427837.

The spelling of 8447997448 in words is "eight billion, four hundred forty-seven million, nine hundred ninety-seven thousand, four hundred forty-eight".