9799998 has 16 divisors (see below), whose sum is σ = 21107856. Its totient is φ = 3015360.

The previous prime is 9799997. The next prime is 9800003. The reversal of 9799998 is 8999979.

9799998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9799997) 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, 62743 + ... + 62898.

It is an arithmetic number, because the mean of its divisors is an integer number (1319241).

Almost surely, 2^9799998 is an apocalyptic number.

9799998 is an abundant number, since it is smaller than the sum of its proper divisors (11307858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9799998 is a wasteful number, since it uses less digits than its factorization.

9799998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125659.

The product of its digits is 3306744, while the sum is 60.

The square root of 9799998 is about 3130.4948490614. The cubic root of 9799998 is about 213.9974815554.

The spelling of 9799998 in words is "nine million, seven hundred ninety-nine thousand, nine hundred ninety-eight".