99600019 has 2 divisors, whose sum is σ = 99600020. Its totient is φ = 99600018.

The previous prime is 99600001. The next prime is 99600023. The reversal of 99600019 is 91000699.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (91000699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99600019 - 2²³ = 91211411 is a prime.

It is a super-2 number, since 2×99600019² = 19840327569600722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99600719) 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, 49800009 + 49800010.

It is an arithmetic number, because the mean of its divisors is an integer number (49800010).

Almost surely, 2^99600019 is an apocalyptic number.

99600019 is a deficient number, since it is larger than the sum of its proper divisors (1).

99600019 is an equidigital number, since it uses as much as digits as its factorization.

99600019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 99600019 is about 9979.9809118054. The cubic root of 99600019 is about 463.5392073155.

The spelling of 99600019 in words is "ninety-nine million, six hundred thousand, nineteen".