9879542 has 8 divisors (see below), whose sum is σ = 14955600. Its totient is φ = 4894344.

The previous prime is 9879521. The next prime is 9879557. The reversal of 9879542 is 2459789.

It is a happy number.

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 9² + 8 + 7⁷ + 9⁷ + 5⁷ + 4¹¹ + 2⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 9879493 and 9879502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22442 + ... + 22877.

It is an arithmetic number, because the mean of its divisors is an integer number (1869450).

Almost surely, 2^9879542 is an apocalyptic number.

9879542 is a deficient number, since it is larger than the sum of its proper divisors (5076058).

9879542 is a wasteful number, since it uses less digits than its factorization.

9879542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45430.

The product of its digits is 181440, while the sum is 44.

The square root of 9879542 is about 3143.1738736506. The cubic root of 9879542 is about 214.5749091319.

The spelling of 9879542 in words is "nine million, eight hundred seventy-nine thousand, five hundred forty-two".