99988019 has 2 divisors, whose sum is σ = 99988020. Its totient is φ = 99988018.

The previous prime is 99988003. The next prime is 99988037. The reversal of 99988019 is 91088999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99988019 - 2⁴ = 99988003 is a prime.

It is a super-2 number, since 2×99988019² = 19995207887088722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99988069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49994009 + 49994010.

It is an arithmetic number, because the mean of its divisors is an integer number (49994010).

Almost surely, 2^99988019 is an apocalyptic number.

99988019 is a deficient number, since it is larger than the sum of its proper divisors (1).

99988019 is an equidigital number, since it uses as much as digits as its factorization.

99988019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 53.

The square root of 99988019 is about 9999.4009320559. The cubic root of 99988019 is about 464.1403456623.

The spelling of 99988019 in words is "ninety-nine million, nine hundred eighty-eight thousand, nineteen".