9998481 has 4 divisors (see below), whose sum is σ = 13331312. Its totient is φ = 6665652.

The previous prime is 9998479. The next prime is 9998539. The reversal of 9998481 is 1848999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9998481 - 2¹ = 9998479 is a prime.

It is a super-2 number, since 2×9998481² = 199939244614722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9998481.

It is not an unprimeable number, because it can be changed into a prime (9998441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1666411 + ... + 1666416.

It is an arithmetic number, because the mean of its divisors is an integer number (3332828).

Almost surely, 2^9998481 is an apocalyptic number.

It is an amenable number.

9998481 is a deficient number, since it is larger than the sum of its proper divisors (3332831).

9998481 is a wasteful number, since it uses less digits than its factorization.

9998481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332830.

The product of its digits is 186624, while the sum is 48.

The square root of 9998481 is about 3162.0374760588. The cubic root of 9998481 is about 215.4325598298.

The spelling of 9998481 in words is "nine million, nine hundred ninety-eight thousand, four hundred eighty-one".