9685438 has 24 divisors (see below), whose sum is σ = 17638992. Its totient is φ = 3969504.

The previous prime is 9685433. The next prime is 9685439. The reversal of 9685438 is 8345869.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9685394 and 9685403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9685433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106 + ... + 4402.

It is an arithmetic number, because the mean of its divisors is an integer number (734958).

Almost surely, 2^9685438 is an apocalyptic number.

9685438 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

9685438 is a deficient number, since it is larger than the sum of its proper divisors (7953554).

9685438 is a wasteful number, since it uses less digits than its factorization.

9685438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4336 (or 4329 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 9685438 is about 3112.1436342174. The cubic root of 9685438 is about 213.1603485943.

The spelling of 9685438 in words is "nine million, six hundred eighty-five thousand, four hundred thirty-eight".