12464321 has 4 divisors (see below), whose sum is σ = 13006272. Its totient is φ = 11922372.

The previous prime is 12464311. The next prime is 12464327. The reversal of 12464321 is 12346421.

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: 12346421 = 1759 ⋅7019.

It is not a de Polignac number, because 12464321 - 2¹⁴ = 12447937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 541927 = 12464321 / (1 + 2 + 4 + 6 + 4 + 3 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12464327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270941 + ... + 270986.

It is an arithmetic number, because the mean of its divisors is an integer number (3251568).

Almost surely, 2^12464321 is an apocalyptic number.

It is an amenable number.

12464321 is a deficient number, since it is larger than the sum of its proper divisors (541951).

12464321 is an equidigital number, since it uses as much as digits as its factorization.

12464321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541950.

The product of its digits is 1152, while the sum is 23.

The square root of 12464321 is about 3530.4845276534. The cubic root of 12464321 is about 231.8584215957.

The spelling of 12464321 in words is "twelve million, four hundred sixty-four thousand, three hundred twenty-one".