14317421 has 4 divisors (see below), whose sum is σ = 14325600. Its totient is φ = 14309244.

The previous prime is 14317403. The next prime is 14317423. The reversal of 14317421 is 12471341.

It is a happy number.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 14317421 - 2⁶ = 14317357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14317423) 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, 281 + ... + 5358.

It is an arithmetic number, because the mean of its divisors is an integer number (3581400).

Almost surely, 2^14317421 is an apocalyptic number.

It is an amenable number.

14317421 is a deficient number, since it is larger than the sum of its proper divisors (8179).

14317421 is an equidigital number, since it uses as much as digits as its factorization.

14317421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8178.

The product of its digits is 672, while the sum is 23.

The square root of 14317421 is about 3783.8368093775. The cubic root of 14317421 is about 242.8221304444.

Adding to 14317421 its reverse (12471341), we get a palindrome (26788762).

The spelling of 14317421 in words is "fourteen million, three hundred seventeen thousand, four hundred twenty-one".