9987394 has 8 divisors (see below), whose sum is σ = 15464448. Its totient is φ = 4832580.

The previous prime is 9987391. The next prime is 9987403. The reversal of 9987394 is 4937899.

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

It is a super-2 number, since 2×9987394² = 199496077822472, which contains 22 as substring.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (9987391) 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, 80482 + ... + 80605.

It is an arithmetic number, because the mean of its divisors is an integer number (1933056).

Almost surely, 2^9987394 is an apocalyptic number.

9987394 is a deficient number, since it is larger than the sum of its proper divisors (5477054).

9987394 is a wasteful number, since it uses less digits than its factorization.

9987394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161120.

The product of its digits is 489888, while the sum is 49.

The square root of 9987394 is about 3160.2838480111. The cubic root of 9987394 is about 215.3529015904.

The spelling of 9987394 in words is "nine million, nine hundred eighty-seven thousand, three hundred ninety-four".