9889913 has 8 divisors (see below), whose sum is σ = 10817280. Its totient is φ = 8967280.

The previous prime is 9889909. The next prime is 9889921. The reversal of 9889913 is 3199889.

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 9889913 - 2² = 9889909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9889933) 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 7 ways as a sum of consecutive naturals, for example, 4331 + ... + 6207.

It is an arithmetic number, because the mean of its divisors is an integer number (1352160).

Almost surely, 2^9889913 is an apocalyptic number.

It is an amenable number.

9889913 is a deficient number, since it is larger than the sum of its proper divisors (927367).

9889913 is a wasteful number, since it uses less digits than its factorization.

9889913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367.

The product of its digits is 139968, while the sum is 47.

The square root of 9889913 is about 3144.8232064776. The cubic root of 9889913 is about 214.6499658552.

It can be divided in two parts, 988 and 9913, that added together give a palindrome (10901).

The spelling of 9889913 in words is "nine million, eight hundred eighty-nine thousand, nine hundred thirteen".