9378638 has 8 divisors (see below), whose sum is σ = 14086632. Its totient is φ = 4683096.

The previous prime is 9378631. The next prime is 9378653. The reversal of 9378638 is 8368739.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9378631) 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 in 3 ways as a sum of consecutive naturals, for example, 920 + ... + 4427.

It is an arithmetic number, because the mean of its divisors is an integer number (1760829).

Almost surely, 2^9378638 is an apocalyptic number.

9378638 is a deficient number, since it is larger than the sum of its proper divisors (4707994).

9378638 is a wasteful number, since it uses less digits than its factorization.

9378638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6226.

The product of its digits is 217728, while the sum is 44.

The square root of 9378638 is about 3062.4562037685. The cubic root of 9378638 is about 210.8854375363.

The spelling of 9378638 in words is "nine million, three hundred seventy-eight thousand, six hundred thirty-eight".