9998574 has 8 divisors (see below), whose sum is σ = 19997160. Its totient is φ = 3332856.

The previous prime is 9998561. The next prime is 9998581. The reversal of 9998574 is 4758999.

It is a happy number.

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

9998574 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833209 + ... + 833220.

It is an arithmetic number, because the mean of its divisors is an integer number (2499645).

Almost surely, 2^9998574 is an apocalyptic number.

9998574 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9998574 is a wasteful number, since it uses less digits than its factorization.

9998574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666434.

The product of its digits is 816480, while the sum is 51.

The square root of 9998574 is about 3162.0521817326. The cubic root of 9998574 is about 215.4332277701.

The spelling of 9998574 in words is "nine million, nine hundred ninety-eight thousand, five hundred seventy-four".