9378213 has 16 divisors (see below), whose sum is σ = 13902336. Its totient is φ = 5584320.

The previous prime is 9378211. The next prime is 9378233. The reversal of 9378213 is 3128739.

9378213 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 9378213 - 2¹ = 9378211 is a prime.

9378213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9378211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2670 + ... + 5087.

It is an arithmetic number, because the mean of its divisors is an integer number (868896).

Almost surely, 2^9378213 is an apocalyptic number.

9378213 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

It is an amenable number.

9378213 is a deficient number, since it is larger than the sum of its proper divisors (4524123).

9378213 is a wasteful number, since it uses less digits than its factorization.

9378213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7804.

The product of its digits is 9072, while the sum is 33.

The square root of 9378213 is about 3062.3868142349. The cubic root of 9378213 is about 210.8822520110.

It can be divided in two parts, 9378 and 213, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 9378213 in words is "nine million, three hundred seventy-eight thousand, two hundred thirteen".