98391838 has 16 divisors (see below), whose sum is σ = 159317280. Its totient is φ = 45433696.

The previous prime is 98391827. The next prime is 98391851. The reversal of 98391838 is 83819389.

It is a junction number, because it is equal to n+sod(n) for n = 98391791 and 98391800.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 35545 + ... + 38212.

It is an arithmetic number, because the mean of its divisors is an integer number (9957330).

Almost surely, 2^98391838 is an apocalyptic number.

98391838 is a deficient number, since it is larger than the sum of its proper divisors (60925442).

98391838 is a wasteful number, since it uses less digits than its factorization.

98391838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73811.

The product of its digits is 373248, while the sum is 49.

The square root of 98391838 is about 9919.2660010708. The cubic root of 98391838 is about 461.6572828588.

The spelling of 98391838 in words is "ninety-eight million, three hundred ninety-one thousand, eight hundred thirty-eight".