9884402387 has 4 divisors (see below), whose sum is σ = 9908570040. Its totient is φ = 9860234736.

The previous prime is 9884402371. The next prime is 9884402441. The reversal of 9884402387 is 7832044889.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9884402387 - 2⁴ = 9884402371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9884402887) 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, 12083213 + ... + 12084030.

It is an arithmetic number, because the mean of its divisors is an integer number (2477142510).

Almost surely, 2^9884402387 is an apocalyptic number.

9884402387 is a deficient number, since it is larger than the sum of its proper divisors (24167653).

9884402387 is a wasteful number, since it uses less digits than its factorization.

9884402387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24167652.

The product of its (nonzero) digits is 3096576, while the sum is 53.

The square root of 9884402387 is about 99420.3318592329. The cubic root of 9884402387 is about 2146.1009113121.

The spelling of 9884402387 in words is "nine billion, eight hundred eighty-four million, four hundred two thousand, three hundred eighty-seven".