98100509 has 8 divisors (see below), whose sum is σ = 107640792. Its totient is φ = 88845120.

The previous prime is 98100503. The next prime is 98100559. The reversal of 98100509 is 90500189.

It can be written as a sum of positive squares in 4 ways, for example, as 9796900 + 88303609 = 3130^2 + 9397^2 .

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

It is not a de Polignac number, because 98100509 - 2⁸ = 98100253 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 (98100503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70502 + ... + 71879.

It is an arithmetic number, because the mean of its divisors is an integer number (13455099).

Almost surely, 2^98100509 is an apocalyptic number.

It is an amenable number.

98100509 is a deficient number, since it is larger than the sum of its proper divisors (9540283).

98100509 is a wasteful number, since it uses less digits than its factorization.

98100509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142447.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 98100509 is about 9904.5701067739. The cubic root of 98100509 is about 461.2011911152.

The spelling of 98100509 in words is "ninety-eight million, one hundred thousand, five hundred nine".