9999846 has 24 divisors (see below), whose sum is σ = 21742344. Its totient is φ = 3321600.

The previous prime is 9999823. The next prime is 9999863. The reversal of 9999846 is 6489999.

It is a happy number.

9999846 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 9999792 and 9999801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5446 + ... + 7046.

It is an arithmetic number, because the mean of its divisors is an integer number (905931).

Almost surely, 2^9999846 is an apocalyptic number.

9999846 is an abundant number, since it is smaller than the sum of its proper divisors (11742498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9999846 is a wasteful number, since it uses less digits than its factorization.

9999846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956 (or 1953 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 9999846 is about 3162.2533105366. The cubic root of 9999846 is about 215.4423630544.

The spelling of 9999846 in words is "nine million, nine hundred ninety-nine thousand, eight hundred forty-six".