99850019 has 2 divisors, whose sum is σ = 99850020. Its totient is φ = 99850018.

The previous prime is 99850001. The next prime is 99850081. The reversal of 99850019 is 91005899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99850019 - 2¹⁶ = 99784483 is a prime.

It is a super-2 number, since 2×99850019² = 19940052588600722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99850099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49925009 + 49925010.

It is an arithmetic number, because the mean of its divisors is an integer number (49925010).

Almost surely, 2^99850019 is an apocalyptic number.

99850019 is a deficient number, since it is larger than the sum of its proper divisors (1).

99850019 is an equidigital number, since it uses as much as digits as its factorization.

99850019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 99850019 is about 9992.4981361019. The cubic root of 99850019 is about 463.9267172092.

The spelling of 99850019 in words is "ninety-nine million, eight hundred fifty thousand, nineteen".