9876642 has 8 divisors (see below), whose sum is σ = 19753296. Its totient is φ = 3292212.

The previous prime is 9876641. The next prime is 9876673. The reversal of 9876642 is 2466789.

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

9876642 is an admirable number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 9876594 and 9876603.

It is not an unprimeable number, because it can be changed into a prime (9876641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823048 + ... + 823059.

It is an arithmetic number, because the mean of its divisors is an integer number (2469162).

Almost surely, 2^9876642 is an apocalyptic number.

9876642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9876642 is a wasteful number, since it uses less digits than its factorization.

9876642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646112.

The product of its digits is 145152, while the sum is 42.

The square root of 9876642 is about 3142.7125226466. The cubic root of 9876642 is about 214.5539119328.

The spelling of 9876642 in words is "nine million, eight hundred seventy-six thousand, six hundred forty-two".