13840027 has 4 divisors (see below), whose sum is σ = 13863960. Its totient is φ = 13816096.

The previous prime is 13840003. The next prime is 13840033. The reversal of 13840027 is 72004831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13840027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13839983 and 13840010.

It is not an unprimeable number, because it can be changed into a prime (13840067) 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, 11077 + ... + 12262.

It is an arithmetic number, because the mean of its divisors is an integer number (3465990).

Almost surely, 2^13840027 is an apocalyptic number.

13840027 is a deficient number, since it is larger than the sum of its proper divisors (23933).

13840027 is an equidigital number, since it uses as much as digits as its factorization.

13840027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23932.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 13840027 is about 3720.2186763684. The cubic root of 13840027 is about 240.0927130225.

Adding to 13840027 its reverse (72004831), we get a palindrome (85844858).

The spelling of 13840027 in words is "thirteen million, eight hundred forty thousand, twenty-seven".