12378411 has 6 divisors (see below), whose sum is σ = 17879940. Its totient is φ = 8252268.

The previous prime is 12378403. The next prime is 12378413. The reversal of 12378411 is 11487321.

It is not a de Polignac number, because 12378411 - 2³ = 12378403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12378413) 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 5 ways as a sum of consecutive naturals, for example, 687681 + ... + 687698.

It is an arithmetic number, because the mean of its divisors is an integer number (2979990).

Almost surely, 2^12378411 is an apocalyptic number.

12378411 is a deficient number, since it is larger than the sum of its proper divisors (5501529).

12378411 is a wasteful number, since it uses less digits than its factorization.

12378411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375385 (or 1375382 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 12378411 is about 3518.2966048928. The cubic root of 12378411 is about 231.3245003691.

The spelling of 12378411 in words is "twelve million, three hundred seventy-eight thousand, four hundred eleven".