9378257 has 12 divisors (see below), whose sum is σ = 11165616. Its totient is φ = 7849800.

The previous prime is 9378247. The next prime is 9378269. The reversal of 9378257 is 7528739.

9378257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9378257 - 2⁴ = 9378241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9378247) 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, 119 + ... + 4332.

It is an arithmetic number, because the mean of its divisors is an integer number (930468).

Almost surely, 2^9378257 is an apocalyptic number.

It is an amenable number.

9378257 is a deficient number, since it is larger than the sum of its proper divisors (1787359).

9378257 is a wasteful number, since it uses less digits than its factorization.

9378257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4508 (or 4501 counting only the distinct ones).

The product of its digits is 105840, while the sum is 41.

The square root of 9378257 is about 3062.3939981655. The cubic root of 9378257 is about 210.8825818110.

It can be divided in two parts, 93782 and 57, that added together give a palindrome (93839).

The spelling of 9378257 in words is "nine million, three hundred seventy-eight thousand, two hundred fifty-seven".