98888819 has 2 divisors, whose sum is σ = 98888820. Its totient is φ = 98888818.

The previous prime is 98888743. The next prime is 98888837. The reversal of 98888819 is 91888889.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98888819 - 2⁸ = 98888563 is a prime.

It is a super-2 number, since 2×98888819² = 19557997046429522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98888219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49444409 + 49444410.

It is an arithmetic number, because the mean of its divisors is an integer number (49444410).

Almost surely, 2^98888819 is an apocalyptic number.

98888819 is a deficient number, since it is larger than the sum of its proper divisors (1).

98888819 is an equidigital number, since it uses as much as digits as its factorization.

98888819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2654208, while the sum is 59.

The square root of 98888819 is about 9944.2857460956. The cubic root of 98888819 is about 462.4332607863.

The spelling of 98888819 in words is "ninety-eight million, eight hundred eighty-eight thousand, eight hundred nineteen".