9949998 has 16 divisors (see below), whose sum is σ = 21070800. Its totient is φ = 3121536.

The previous prime is 9949967. The next prime is 9950021. The reversal of 9949998 is 8999499.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48673 + ... + 48876.

It is an arithmetic number, because the mean of its divisors is an integer number (1316925).

Almost surely, 2^9949998 is an apocalyptic number.

9949998 is an abundant number, since it is smaller than the sum of its proper divisors (11120802).

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

9949998 is a wasteful number, since it uses less digits than its factorization.

9949998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97571.

The product of its digits is 1889568, while the sum is 57.

The square root of 9949998 is about 3154.3617420962. The cubic root of 9949998 is about 215.0837820219.

The spelling of 9949998 in words is "nine million, nine hundred forty-nine thousand, nine hundred ninety-eight".