9985443 has 16 divisors (see below), whose sum is σ = 15182496. Its totient is φ = 5783040.

The previous prime is 9985433. The next prime is 9985447. The reversal of 9985443 is 3445899.

9985443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9985443 - 2⁸ = 9985187 is a prime.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 9985395 and 9985404.

It is not an unprimeable number, because it can be changed into a prime (9985447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6868 + ... + 8193.

It is an arithmetic number, because the mean of its divisors is an integer number (948906).

Almost surely, 2^9985443 is an apocalyptic number.

9985443 is a deficient number, since it is larger than the sum of its proper divisors (5197053).

9985443 is a wasteful number, since it uses less digits than its factorization.

9985443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15094.

The product of its digits is 155520, while the sum is 42.

The square root of 9985443 is about 3159.9751581302. The cubic root of 9985443 is about 215.3388778831.

It can be divided in two parts, 998 and 5443, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 9985443 in words is "nine million, nine hundred eighty-five thousand, four hundred forty-three".