9216378 has 12 divisors (see below), whose sum is σ = 19968858. Its totient is φ = 3072120.

The previous prime is 9216373. The next prime is 9216391. The reversal of 9216378 is 8736129.

It can be written as a sum of positive squares in only one way, i.e., 5745609 + 3470769 = 2397^2 + 1863^2 .

It is not an unprimeable number, because it can be changed into a prime (9216373) 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 5 ways as a sum of consecutive naturals, for example, 255993 + ... + 256028.

Almost surely, 2^9216378 is an apocalyptic number.

9216378 is an abundant number, since it is smaller than the sum of its proper divisors (10752480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9216378 is a wasteful number, since it uses less digits than its factorization.

9216378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512029 (or 512026 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 9216378 is about 3035.8488104647. The cubic root of 9216378 is about 209.6621779334.

Subtracting from 9216378 its reverse (8736129), we obtain a square (480249 = 693²).

The spelling of 9216378 in words is "nine million, two hundred sixteen thousand, three hundred seventy-eight".