13862447 has 2 divisors, whose sum is σ = 13862448. Its totient is φ = 13862446.

The previous prime is 13862441. The next prime is 13862449. The reversal of 13862447 is 74426831.

It is a strong prime.

It is an emirp because it is prime and its reverse (74426831) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13862447 is a prime.

Together with 13862449, 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 (13862441) 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 as a sum of consecutive naturals, namely, 6931223 + 6931224.

It is an arithmetic number, because the mean of its divisors is an integer number (6931224).

Almost surely, 2^13862447 is an apocalyptic number.

13862447 is a deficient number, since it is larger than the sum of its proper divisors (1).

13862447 is an equidigital number, since it uses as much as digits as its factorization.

13862447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 35.

The square root of 13862447 is about 3723.2307207585. The cubic root of 13862447 is about 240.2222882658. Note that the first 4 decimals are identical.

The spelling of 13862447 in words is "thirteen million, eight hundred sixty-two thousand, four hundred forty-seven".