9740638 has 16 divisors (see below), whose sum is σ = 15396480. Its totient is φ = 4612696.

The previous prime is 9740629. The next prime is 9740639. The reversal of 9740638 is 8360479.

It is a junction number, because it is equal to n+sod(n) for n = 9740597 and 9740606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9740639) 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 7 ways as a sum of consecutive naturals, for example, 3933 + ... + 5911.

It is an arithmetic number, because the mean of its divisors is an integer number (962280).

Almost surely, 2^9740638 is an apocalyptic number.

9740638 is a deficient number, since it is larger than the sum of its proper divisors (5655842).

9740638 is a wasteful number, since it uses less digits than its factorization.

9740638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 9740638 is about 3120.9995193848. Note that the first 3 decimals coincide. The cubic root of 9740638 is about 213.5645350416.

The spelling of 9740638 in words is "nine million, seven hundred forty thousand, six hundred thirty-eight".