14008021 has 4 divisors (see below), whose sum is σ = 14306112. Its totient is φ = 13709932.

The previous prime is 14008013. The next prime is 14008031. The reversal of 14008021 is 12080041.

It is a happy number.

14008021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12080041 = 643 ⋅18787.

It is a cyclic number.

It is not a de Polignac number, because 14008021 - 2³ = 14008013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14007986 and 14008004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14008031) 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, 148975 + ... + 149068.

It is an arithmetic number, because the mean of its divisors is an integer number (3576528).

Almost surely, 2^14008021 is an apocalyptic number.

It is an amenable number.

14008021 is a deficient number, since it is larger than the sum of its proper divisors (298091).

14008021 is an equidigital number, since it uses as much as digits as its factorization.

14008021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298090.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 14008021 is about 3742.7290845050. The cubic root of 14008021 is about 241.0602456089.

Adding to 14008021 its reverse (12080041), we get a palindrome (26088062).

The spelling of 14008021 in words is "fourteen million, eight thousand, twenty-one".