9988574 has 8 divisors (see below), whose sum is σ = 15014160. Its totient is φ = 4983856.

The previous prime is 9988553. The next prime is 9988577. The reversal of 9988574 is 4758899.

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

It is a super-2 number, since 2×9988574² = 199543221106952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9988577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3959 + ... + 5970.

It is an arithmetic number, because the mean of its divisors is an integer number (1876770).

Almost surely, 2^9988574 is an apocalyptic number.

9988574 is a deficient number, since it is larger than the sum of its proper divisors (5025586).

9988574 is a wasteful number, since it uses less digits than its factorization.

9988574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10434.

The product of its digits is 725760, while the sum is 50.

The square root of 9988574 is about 3160.4705345882. The cubic root of 9988574 is about 215.3613824953.

The spelling of 9988574 in words is "nine million, nine hundred eighty-eight thousand, five hundred seventy-four".