12353421 has 8 divisors (see below), whose sum is σ = 16498080. Its totient is φ = 8222192.

The previous prime is 12353389. The next prime is 12353437. The reversal of 12353421 is 12435321.

12353421 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 12353421 - 2⁵ = 12353389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12353321) 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, 966 + ... + 5063.

It is an arithmetic number, because the mean of its divisors is an integer number (2062260).

Almost surely, 2^12353421 is an apocalyptic number.

It is an amenable number.

12353421 is a deficient number, since it is larger than the sum of its proper divisors (4144659).

12353421 is an equidigital number, since it uses as much as digits as its factorization.

12353421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6715.

The product of its digits is 720, while the sum is 21.

The square root of 12353421 is about 3514.7433761229. The cubic root of 12353421 is about 231.1687266381.

Adding to 12353421 its reverse (12435321), we get a palindrome (24788742).

It can be divided in two parts, 1235 and 3421, that added together give a triangular number (4656 = T₉₆).

The spelling of 12353421 in words is "twelve million, three hundred fifty-three thousand, four hundred twenty-one".