99948281 has 2 divisors, whose sum is σ = 99948282. Its totient is φ = 99948280.

The previous prime is 99948263. The next prime is 99948307. The reversal of 99948281 is 18284999.

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., 82973881 + 16974400 = 9109^2 + 4120^2 .

It is a cyclic number.

It is not a de Polignac number, because 99948281 - 2⁶ = 99948217 is a prime.

It is a super-2 number, since 2×99948281² = 19979317749709922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99948221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49974140 + 49974141.

It is an arithmetic number, because the mean of its divisors is an integer number (49974141).

Almost surely, 2^99948281 is an apocalyptic number.

It is an amenable number.

99948281 is a deficient number, since it is larger than the sum of its proper divisors (1).

99948281 is an equidigital number, since it uses as much as digits as its factorization.

99948281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 50.

The square root of 99948281 is about 9997.4137155566. The cubic root of 99948281 is about 464.0788501179.

The spelling of 99948281 in words is "ninety-nine million, nine hundred forty-eight thousand, two hundred eighty-one".