98998619 has 2 divisors, whose sum is σ = 98998620. Its totient is φ = 98998618.

The previous prime is 98998609. The next prime is 98998621. The reversal of 98998619 is 91689989.

It is a strong prime.

It is an emirp because it is prime and its reverse (91689989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98998619 - 2⁸ = 98998363 is a prime.

It is a super-2 number, since 2×98998619² = 19601453127814322, which contains 22 as substring.

Together with 98998621, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98998609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49499309 + 49499310.

It is an arithmetic number, because the mean of its divisors is an integer number (49499310).

Almost surely, 2^98998619 is an apocalyptic number.

98998619 is a deficient number, since it is larger than the sum of its proper divisors (1).

98998619 is an equidigital number, since it uses as much as digits as its factorization.

98998619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2519424, while the sum is 59.

The square root of 98998619 is about 9949.8049729630. The cubic root of 98998619 is about 462.6043498659.

The spelling of 98998619 in words is "ninety-eight million, nine hundred ninety-eight thousand, six hundred nineteen".