12384919 has 2 divisors, whose sum is σ = 12384920. Its totient is φ = 12384918.

The previous prime is 12384917. The next prime is 12384949. The reversal of 12384919 is 91948321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12384919 - 2¹ = 12384917 is a prime.

It is a super-2 number, since 2×12384919² = 306772437273122, which contains 22 as substring.

Together with 12384917, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12384917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6192459 + 6192460.

It is an arithmetic number, because the mean of its divisors is an integer number (6192460).

Almost surely, 2^12384919 is an apocalyptic number.

12384919 is a deficient number, since it is larger than the sum of its proper divisors (1).

12384919 is an equidigital number, since it uses as much as digits as its factorization.

12384919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 37.

The square root of 12384919 is about 3519.2213627449. The cubic root of 12384919 is about 231.3650331993.

The spelling of 12384919 in words is "twelve million, three hundred eighty-four thousand, nine hundred nineteen".