9829642 has 8 divisors (see below), whose sum is σ = 15143076. Its totient is φ = 4781952.

The previous prime is 9829639. The next prime is 9829643. The reversal of 9829642 is 2469289.

It can be written as a sum of positive squares in 2 ways, for example, as 9678321 + 151321 = 3111^2 + 389^2 .

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

It is a d-powerful number, because it can be written as 9⁶ + 8⁵ + 2⁵ + 9⁷ + 6⁷ + 4¹¹ + 2¹³ .

It is a junction number, because it is equal to n+sod(n) for n = 9829595 and 9829604.

It is not an unprimeable number, because it can be changed into a prime (9829643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66343 + ... + 66490.

Almost surely, 2^9829642 is an apocalyptic number.

9829642 is a deficient number, since it is larger than the sum of its proper divisors (5313434).

9829642 is a wasteful number, since it uses less digits than its factorization.

9829642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132872.

The product of its digits is 62208, while the sum is 40.

The square root of 9829642 is about 3135.2259886649. The cubic root of 9829642 is about 214.2130379150.

The spelling of 9829642 in words is "nine million, eight hundred twenty-nine thousand, six hundred forty-two".