9889994 has 8 divisors (see below), whose sum is σ = 15615840. Its totient is φ = 4684716.

The previous prime is 9889987. The next prime is 9890009. The reversal of 9889994 is 4999889.

9889994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130094 + ... + 130169.

It is an arithmetic number, because the mean of its divisors is an integer number (1951980).

Almost surely, 2^9889994 is an apocalyptic number.

9889994 is a deficient number, since it is larger than the sum of its proper divisors (5725846).

9889994 is a wasteful number, since it uses less digits than its factorization.

9889994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260284.

The product of its digits is 1679616, while the sum is 56.

The square root of 9889994 is about 3144.8360847586. The cubic root of 9889994 is about 214.6505518597.

The spelling of 9889994 in words is "nine million, eight hundred eighty-nine thousand, nine hundred ninety-four".