13336421 has 8 divisors (see below), whose sum is σ = 15283200. Its totient is φ = 11400048.

The previous prime is 13336399. The next prime is 13336429. The reversal of 13336421 is 12463331.

13336421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13336421 - 2¹⁸ = 13074277 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 (13336429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380 + ... + 5178.

It is an arithmetic number, because the mean of its divisors is an integer number (1910400).

Almost surely, 2^13336421 is an apocalyptic number.

It is an amenable number.

13336421 is a deficient number, since it is larger than the sum of its proper divisors (1946779).

13336421 is an equidigital number, since it uses as much as digits as its factorization.

13336421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5203.

The product of its digits is 1296, while the sum is 23.

The square root of 13336421 is about 3651.9064883975. The cubic root of 13336421 is about 237.1445230547.

Adding to 13336421 its reverse (12463331), we get a palindrome (25799752).

The spelling of 13336421 in words is "thirteen million, three hundred thirty-six thousand, four hundred twenty-one".