99408871 has 2 divisors, whose sum is σ = 99408872. Its totient is φ = 99408870.

The previous prime is 99408863. The next prime is 99408919. The reversal of 99408871 is 17880499.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99408871 - 2³ = 99408863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99408821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49704435 + 49704436.

It is an arithmetic number, because the mean of its divisors is an integer number (49704436).

Almost surely, 2^99408871 is an apocalyptic number.

99408871 is a deficient number, since it is larger than the sum of its proper divisors (1).

99408871 is an equidigital number, since it uses as much as digits as its factorization.

99408871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 99408871 is about 9970.3997412340. The cubic root of 99408871 is about 463.2424826903.

The spelling of 99408871 in words is "ninety-nine million, four hundred eight thousand, eight hundred seventy-one".