9809738 has 16 divisors (see below), whose sum is σ = 15724320. Its totient is φ = 4576176.

The previous prime is 9809711. The next prime is 9809741. The reversal of 9809738 is 8379089.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 620 + ... + 4472.

It is an arithmetic number, because the mean of its divisors is an integer number (982770).

Almost surely, 2^9809738 is an apocalyptic number.

9809738 is a deficient number, since it is larger than the sum of its proper divisors (5914582).

9809738 is a wasteful number, since it uses less digits than its factorization.

9809738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3941.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 9809738 is about 3132.0501273128. The cubic root of 9809738 is about 214.0683538598.

The spelling of 9809738 in words is "nine million, eight hundred nine thousand, seven hundred thirty-eight".