9967838 has 8 divisors (see below), whose sum is σ = 15316560. Its totient is φ = 4862320.

The previous prime is 9967823. The next prime is 9967883. The reversal of 9967838 is 8387699.

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

It is a congruent number.

It is an unprimeable number.

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, 60698 + ... + 60861.

It is an arithmetic number, because the mean of its divisors is an integer number (1914570).

Almost surely, 2^9967838 is an apocalyptic number.

9967838 is a deficient number, since it is larger than the sum of its proper divisors (5348722).

9967838 is a wasteful number, since it uses less digits than its factorization.

9967838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121602.

The product of its digits is 653184, while the sum is 50.

The square root of 9967838 is about 3157.1883060724. The cubic root of 9967838 is about 215.2122511832.

The spelling of 9967838 in words is "nine million, nine hundred sixty-seven thousand, eight hundred thirty-eight".