98909909 has 8 divisors (see below), whose sum is σ = 113535360. Its totient is φ = 84408336.

The previous prime is 98909903. The next prime is 98909971. The reversal of 98909909 is 90990989.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 98909909 - 2⁸ = 98909653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98909903) 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 7 ways as a sum of consecutive naturals, for example, 29249 + ... + 32454.

It is an arithmetic number, because the mean of its divisors is an integer number (14191920).

Almost surely, 2^98909909 is an apocalyptic number.

It is an amenable number.

98909909 is a deficient number, since it is larger than the sum of its proper divisors (14625451).

98909909 is a wasteful number, since it uses less digits than its factorization.

98909909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61939.

The product of its (nonzero) digits is 472392, while the sum is 53.

The square root of 98909909 is about 9945.3460975473. The cubic root of 98909909 is about 462.4661328013.

The spelling of 98909909 in words is "ninety-eight million, nine hundred nine thousand, nine hundred nine".