9949838 has 4 divisors (see below), whose sum is σ = 14924760. Its totient is φ = 4974918.

The previous prime is 9949831. The next prime is 9949859. The reversal of 9949838 is 8389499.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9949831) 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 as a sum of consecutive naturals, namely, 2487458 + ... + 2487461.

It is an arithmetic number, because the mean of its divisors is an integer number (3731190).

Almost surely, 2^9949838 is an apocalyptic number.

9949838 is a deficient number, since it is larger than the sum of its proper divisors (4974922).

9949838 is a wasteful number, since it uses less digits than its factorization.

9949838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4974921.

The product of its digits is 559872, while the sum is 50.

The square root of 9949838 is about 3154.3363802867. The cubic root of 9949838 is about 215.0826291376.

The spelling of 9949838 in words is "nine million, nine hundred forty-nine thousand, eight hundred thirty-eight".