98519779 has 2 divisors, whose sum is σ = 98519780. Its totient is φ = 98519778.

The previous prime is 98519753. The next prime is 98519783. The reversal of 98519779 is 97791589.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98519779 - 2⁵ = 98519747 is a prime.

It is a super-2 number, since 2×98519779² = 19412293708417682, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98519719) 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, 49259889 + 49259890.

It is an arithmetic number, because the mean of its divisors is an integer number (49259890).

Almost surely, 2^98519779 is an apocalyptic number.

98519779 is a deficient number, since it is larger than the sum of its proper divisors (1).

98519779 is an equidigital number, since it uses as much as digits as its factorization.

98519779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840, while the sum is 55.

The square root of 98519779 is about 9925.7130222468. The cubic root of 98519779 is about 461.8572971181.

The spelling of 98519779 in words is "ninety-eight million, five hundred nineteen thousand, seven hundred seventy-nine".