9887389 has 8 divisors (see below), whose sum is σ = 10101888. Its totient is φ = 9675120.

The previous prime is 9887363. The next prime is 9887393. The reversal of 9887389 is 9837889.

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

It is a cyclic number.

It is not a de Polignac number, because 9887389 - 2¹³ = 9879197 is a prime.

It is a super-2 number, since 2×9887389² = 195520922474642, which contains 22 as substring.

It is a Duffinian number.

9887389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9887359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10704 + ... + 11590.

It is an arithmetic number, because the mean of its divisors is an integer number (1262736).

Almost surely, 2^9887389 is an apocalyptic number.

It is an amenable number.

9887389 is a deficient number, since it is larger than the sum of its proper divisors (214499).

9887389 is a wasteful number, since it uses less digits than its factorization.

9887389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115.

The product of its digits is 870912, while the sum is 52.

The square root of 9887389 is about 3144.4218864523. The cubic root of 9887389 is about 214.6317040630.

The spelling of 9887389 in words is "nine million, eight hundred eighty-seven thousand, three hundred eighty-nine".