9898005 has 32 divisors (see below), whose sum is σ = 17208576. Its totient is φ = 4829184.

The previous prime is 9898003. The next prime is 9898081. The reversal of 9898005 is 5008989.

It is not a de Polignac number, because 9898005 - 2¹ = 9898003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

9898005 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9898001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37504 + ... + 37766.

It is an arithmetic number, because the mean of its divisors is an integer number (537768).

Almost surely, 2^9898005 is an apocalyptic number.

It is an amenable number.

9898005 is a deficient number, since it is larger than the sum of its proper divisors (7310571).

9898005 is a wasteful number, since it uses less digits than its factorization.

9898005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 9898005 is about 3146.1095022265. The cubic root of 9898005 is about 214.7084926259.

The spelling of 9898005 in words is "nine million, eight hundred ninety-eight thousand, five".