14878439 has 2 divisors, whose sum is σ = 14878440. Its totient is φ = 14878438.

The previous prime is 14878433. The next prime is 14878441. The reversal of 14878439 is 93487841.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14878439 - 2⁸ = 14878183 is a prime.

It is a Sophie Germain prime.

Together with 14878441, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14878439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14878433) 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, 7439219 + 7439220.

It is an arithmetic number, because the mean of its divisors is an integer number (7439220).

Almost surely, 2^14878439 is an apocalyptic number.

14878439 is a deficient number, since it is larger than the sum of its proper divisors (1).

14878439 is an equidigital number, since it uses as much as digits as its factorization.

14878439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 44.

The square root of 14878439 is about 3857.2579638909. The cubic root of 14878439 is about 245.9531880433.

It can be divided in two parts, 148 and 78439, that added together give a palindrome (78587).

The spelling of 14878439 in words is "fourteen million, eight hundred seventy-eight thousand, four hundred thirty-nine".