14026421 has 2 divisors, whose sum is σ = 14026422. Its totient is φ = 14026420.

The previous prime is 14026417. The next prime is 14026423. The reversal of 14026421 is 12462041.

14026421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13322500 + 703921 = 3650^2 + 839^2 .

It is a cyclic number.

It is not a de Polignac number, because 14026421 - 2² = 14026417 is a prime.

Together with 14026423, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 14026393 and 14026402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14026423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7013210 + 7013211.

It is an arithmetic number, because the mean of its divisors is an integer number (7013211).

Almost surely, 2^14026421 is an apocalyptic number.

It is an amenable number.

14026421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14026421 is an equidigital number, since it uses as much as digits as its factorization.

14026421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 14026421 is about 3745.1863772047. The cubic root of 14026421 is about 241.1657463043.

Adding to 14026421 its reverse (12462041), we get a palindrome (26488462).

The spelling of 14026421 in words is "fourteen million, twenty-six thousand, four hundred twenty-one".