98119999 has 2 divisors, whose sum is σ = 98120000. Its totient is φ = 98119998.

The previous prime is 98119997. The next prime is 98120089. The reversal of 98119999 is 99991189.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98119999 - 2¹ = 98119997 is a prime.

Together with 98119997, it forms a pair of twin primes.

98119999 is a modest number, since divided by 9999 gives 9811 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98119997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49059999 + 49060000.

It is an arithmetic number, because the mean of its divisors is an integer number (49060000).

Almost surely, 2^98119999 is an apocalyptic number.

98119999 is a deficient number, since it is larger than the sum of its proper divisors (1).

98119999 is an equidigital number, since it uses as much as digits as its factorization.

98119999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 472392, while the sum is 55.

The square root of 98119999 is about 9905.5539471551. The cubic root of 98119999 is about 461.2317319557.

It can be divided in two parts, 9811 and 9999, that multiplied together give a palindrome (98100189).

The spelling of 98119999 in words is "ninety-eight million, one hundred nineteen thousand, nine hundred ninety-nine".