14206639 has 4 divisors (see below), whose sum is σ = 14216256. Its totient is φ = 14197024.

The previous prime is 14206589. The next prime is 14206651. The reversal of 14206639 is 93660241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 93660241 = 73 ⋅1283017.

It is a cyclic number.

It is not a de Polignac number, because 14206639 - 2¹¹ = 14204591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14206639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14206139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2074 + ... + 5719.

It is an arithmetic number, because the mean of its divisors is an integer number (3554064).

Almost surely, 2^14206639 is an apocalyptic number.

14206639 is a deficient number, since it is larger than the sum of its proper divisors (9617).

14206639 is an equidigital number, since it uses as much as digits as its factorization.

14206639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9616.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 14206639 is about 3769.1695371792. The cubic root of 14206639 is about 242.1942240159.

The spelling of 14206639 in words is "fourteen million, two hundred six thousand, six hundred thirty-nine".