14443989 has 8 divisors (see below), whose sum is σ = 22009920. Its totient is φ = 8253696.

The previous prime is 14443987. The next prime is 14444057. The reversal of 14443989 is 98934441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14443989 - 2¹ = 14443987 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 14443989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14443987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343884 + ... + 343925.

It is an arithmetic number, because the mean of its divisors is an integer number (2751240).

Almost surely, 2^14443989 is an apocalyptic number.

It is an amenable number.

14443989 is a deficient number, since it is larger than the sum of its proper divisors (7565931).

14443989 is an equidigital number, since it uses as much as digits as its factorization.

14443989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687819.

The product of its digits is 124416, while the sum is 42.

The square root of 14443989 is about 3800.5248321778. The cubic root of 14443989 is about 243.5355594604.

The spelling of 14443989 in words is "fourteen million, four hundred forty-three thousand, nine hundred eighty-nine".