99887119 has 2 divisors, whose sum is σ = 99887120. Its totient is φ = 99887118.

The previous prime is 99887113. The next prime is 99887129. The reversal of 99887119 is 91178899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99887119 - 2¹⁹ = 99362831 is a prime.

It is a super-2 number, since 2×99887119² = 19954873084240322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99887113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49943559 + 49943560.

It is an arithmetic number, because the mean of its divisors is an integer number (49943560).

Almost surely, 2^99887119 is an apocalyptic number.

99887119 is a deficient number, since it is larger than the sum of its proper divisors (1).

99887119 is an equidigital number, since it uses as much as digits as its factorization.

99887119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 52.

The square root of 99887119 is about 9994.3543563354. The cubic root of 99887119 is about 463.9841685418.

The spelling of 99887119 in words is "ninety-nine million, eight hundred eighty-seven thousand, one hundred nineteen".