99948481 has 2 divisors, whose sum is σ = 99948482. Its totient is φ = 99948480.

The previous prime is 99948479. The next prime is 99948521. The reversal of 99948481 is 18484999.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90554256 + 9394225 = 9516^2 + 3065^2 .

It is a cyclic number.

It is not a de Polignac number, because 99948481 - 2¹ = 99948479 is a prime.

It is a super-2 number, since 2×99948481² = 19979397708414722, which contains 22 as substring.

Together with 99948479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (99948281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49974240 + 49974241.

It is an arithmetic number, because the mean of its divisors is an integer number (49974241).

Almost surely, 2^99948481 is an apocalyptic number.

It is an amenable number.

99948481 is a deficient number, since it is larger than the sum of its proper divisors (1).

99948481 is an equidigital number, since it uses as much as digits as its factorization.

99948481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 52.

The square root of 99948481 is about 9997.4237181386. The cubic root of 99948481 is about 464.0791596637.

The spelling of 99948481 in words is "ninety-nine million, nine hundred forty-eight thousand, four hundred eighty-one".