12382891 has 2 divisors, whose sum is σ = 12382892. Its totient is φ = 12382890.

The previous prime is 12382859. The next prime is 12382907. The reversal of 12382891 is 19828321.

12382891 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12382891 - 2⁵ = 12382859 is a prime.

It is not a weakly prime, because it can be changed into another prime (12382841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6191445 + 6191446.

It is an arithmetic number, because the mean of its divisors is an integer number (6191446).

Almost surely, 2^12382891 is an apocalyptic number.

12382891 is a deficient number, since it is larger than the sum of its proper divisors (1).

12382891 is an equidigital number, since it uses as much as digits as its factorization.

12382891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 34.

The square root of 12382891 is about 3518.9332190310. The cubic root of 12382891 is about 231.3524040250.

The spelling of 12382891 in words is "twelve million, three hundred eighty-two thousand, eight hundred ninety-one".