98823819 has 4 divisors (see below), whose sum is σ = 131765096. Its totient is φ = 65882544.

The previous prime is 98823797. The next prime is 98823821. The reversal of 98823819 is 91832889.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91832889 = 3 ⋅30610963.

It is not a de Polignac number, because 98823819 - 2⁵ = 98823787 is a prime.

It is a super-2 number, since 2×98823819² = 19532294403489522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98823859) 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 in 3 ways as a sum of consecutive naturals, for example, 16470634 + ... + 16470639.

It is an arithmetic number, because the mean of its divisors is an integer number (32941274).

Almost surely, 2^98823819 is an apocalyptic number.

98823819 is a deficient number, since it is larger than the sum of its proper divisors (32941277).

98823819 is a wasteful number, since it uses less digits than its factorization.

98823819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32941276.

The product of its digits is 248832, while the sum is 48.

The square root of 98823819 is about 9941.0170002872. The cubic root of 98823819 is about 462.3319188603.

The spelling of 98823819 in words is "ninety-eight million, eight hundred twenty-three thousand, eight hundred nineteen".