99993448 has 8 divisors (see below), whose sum is σ = 187487730. Its totient is φ = 49996720.

The previous prime is 99993433. The next prime is 99993449. The reversal of 99993448 is 84439999.

It can be written as a sum of positive squares in only one way, i.e., 99560484 + 432964 = 9978^2 + 658^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (99993449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6249583 + ... + 6249598.

Almost surely, 2^99993448 is an apocalyptic number.

It is an amenable number.

99993448 is a deficient number, since it is larger than the sum of its proper divisors (87494282).

99993448 is a wasteful number, since it uses less digits than its factorization.

99993448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12499187 (or 12499183 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 55.

The square root of 99993448 is about 9999.6723946337. The cubic root of 99993448 is about 464.1487459099.

The spelling of 99993448 in words is "ninety-nine million, nine hundred ninety-three thousand, four hundred forty-eight".