14439939 has 4 divisors (see below), whose sum is σ = 19253256. Its totient is φ = 9626624.

The previous prime is 14439917. The next prime is 14439947. The reversal of 14439939 is 93993441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93993441 = 3 ⋅31331147.

It is a cyclic number.

It is not a de Polignac number, because 14439939 - 2⁸ = 14439683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14439939.

It is not an unprimeable number, because it can be changed into a prime (14439539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2406654 + ... + 2406659.

It is an arithmetic number, because the mean of its divisors is an integer number (4813314).

Almost surely, 2^14439939 is an apocalyptic number.

14439939 is a deficient number, since it is larger than the sum of its proper divisors (4813317).

14439939 is an equidigital number, since it uses as much as digits as its factorization.

14439939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813316.

The product of its digits is 104976, while the sum is 42.

The square root of 14439939 is about 3799.9919736757. The cubic root of 14439939 is about 243.5127954069.

The spelling of 14439939 in words is "fourteen million, four hundred thirty-nine thousand, nine hundred thirty-nine".