98128835 has 16 divisors (see below), whose sum is σ = 135065856. Its totient is φ = 67043808.

The previous prime is 98128831. The next prime is 98128841. The reversal of 98128835 is 53882189.

It is a Cunningham number, because it is equal to 9906²-1.

It is a cyclic number.

It is not a de Polignac number, because 98128835 - 2² = 98128831 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98128831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4952 + ... + 14858.

It is an arithmetic number, because the mean of its divisors is an integer number (8441616).

Almost surely, 2^98128835 is an apocalyptic number.

98128835 is a deficient number, since it is larger than the sum of its proper divisors (36937021).

98128835 is a wasteful number, since it uses less digits than its factorization.

98128835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10202.

The product of its digits is 138240, while the sum is 44.

The square root of 98128835 is about 9905.9999495255. Note that the first 4 decimals coincide. The cubic root of 98128835 is about 461.2455766401.

The spelling of 98128835 in words is "ninety-eight million, one hundred twenty-eight thousand, eight hundred thirty-five".