12378223 has 8 divisors (see below), whose sum is σ = 14542416. Its totient is φ = 10387200.

The previous prime is 12378199. The next prime is 12378241. The reversal of 12378223 is 32287321.

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

It is a cyclic number.

It is not a de Polignac number, because 12378223 - 2¹³ = 12370031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12378191 and 12378200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12378263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43138 + ... + 43423.

It is an arithmetic number, because the mean of its divisors is an integer number (1817802).

Almost surely, 2^12378223 is an apocalyptic number.

12378223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12378223 is a deficient number, since it is larger than the sum of its proper divisors (2164193).

12378223 is a wasteful number, since it uses less digits than its factorization.

12378223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86585.

The product of its digits is 4032, while the sum is 28.

The square root of 12378223 is about 3518.2698873168. The cubic root of 12378223 is about 231.3233292650.

The spelling of 12378223 in words is "twelve million, three hundred seventy-eight thousand, two hundred twenty-three".