9985829 has 8 divisors (see below), whose sum is σ = 11431680. Its totient is φ = 8544816.

The previous prime is 9985799. The next prime is 9985853. The reversal of 9985829 is 9285899.

9985829 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 not a de Polignac number, because 9985829 - 2¹² = 9981733 is a prime.

It is a super-3 number, since 3×9985829³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9985879) 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, 6587 + ... + 7959.

It is an arithmetic number, because the mean of its divisors is an integer number (1428960).

Almost surely, 2^9985829 is an apocalyptic number.

It is an amenable number.

9985829 is a deficient number, since it is larger than the sum of its proper divisors (1445851).

9985829 is a wasteful number, since it uses less digits than its factorization.

9985829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419.

The product of its digits is 466560, while the sum is 50.

The square root of 9985829 is about 3160.0362339695. The cubic root of 9985829 is about 215.3416525800.

The spelling of 9985829 in words is "nine million, nine hundred eighty-five thousand, eight hundred twenty-nine".