9989853 has 8 divisors (see below), whose sum is σ = 13370400. Its totient is φ = 6634608.

The previous prime is 9989849. The next prime is 9989879. The reversal of 9989853 is 3589899.

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

It is not a de Polignac number, because 9989853 - 2² = 9989849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9989796 and 9989805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9989813) 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, 5383 + ... + 6996.

It is an arithmetic number, because the mean of its divisors is an integer number (1671300).

Almost surely, 2^9989853 is an apocalyptic number.

It is an amenable number.

9989853 is a deficient number, since it is larger than the sum of its proper divisors (3380547).

9989853 is a wasteful number, since it uses less digits than its factorization.

9989853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12651.

The product of its digits is 699840, while the sum is 51.

The square root of 9989853 is about 3160.6728713994. The cubic root of 9989853 is about 215.3705741795.

The spelling of 9989853 in words is "nine million, nine hundred eighty-nine thousand, eight hundred fifty-three".